/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=BIGGEST --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 -i ../../../trunk/examples/svcomp/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:15:56,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:15:56,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:15:56,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:15:56,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:15:56,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:15:56,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:15:56,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:15:56,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:15:56,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:15:56,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:15:56,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:15:56,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:15:56,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:15:56,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:15:56,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:15:56,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:15:56,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:15:56,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:15:56,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:15:56,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:15:56,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:15:56,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:15:56,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:15:56,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:15:56,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:15:56,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:15:56,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:15:56,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:15:56,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:15:56,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:15:56,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:15:56,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:15:56,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:15:56,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:15:56,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:15:56,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:15:56,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:15:56,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:15:56,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:15:56,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:15:56,203 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 [2020-10-12 18:15:56,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:15:56,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:15:56,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:15:56,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:15:56,248 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:15:56,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:15:56,249 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:15:56,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:15:56,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:15:56,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:15:56,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:15:56,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:15:56,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:15:56,251 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:15:56,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:15:56,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:15:56,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:15:56,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:15:56,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:15:56,252 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:15:56,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:15:56,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:15:56,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:15:56,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:15:56,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:15:56,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:15:56,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:15:56,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:15:56,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:15:56,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:15:56,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:15:56,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:15:56,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:15:56,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:15:56,563 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:15:56,564 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-10-12 18:15:56,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c60318f9/c8327290e99a456ba025e9252db12f88/FLAG645ce1d40 [2020-10-12 18:15:57,065 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:15:57,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-10-12 18:15:57,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c60318f9/c8327290e99a456ba025e9252db12f88/FLAG645ce1d40 [2020-10-12 18:15:57,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c60318f9/c8327290e99a456ba025e9252db12f88 [2020-10-12 18:15:57,446 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:15:57,447 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:15:57,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:15:57,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:15:57,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:15:57,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a8d835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57, skipping insertion in model container [2020-10-12 18:15:57,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:15:57,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:15:57,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:15:57,663 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:15:57,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:15:57,690 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:15:57,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57 WrapperNode [2020-10-12 18:15:57,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:15:57,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:15:57,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:15:57,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:15:57,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (1/1) ... [2020-10-12 18:15:57,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:15:57,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:15:57,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:15:57,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:15:57,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (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 [2020-10-12 18:15:57,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:15:57,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:15:57,859 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-10-12 18:15:57,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:15:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:15:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 18:15:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-10-12 18:15:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:15:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:15:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:15:58,027 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:15:58,027 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 18:15:58,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:15:58 BoogieIcfgContainer [2020-10-12 18:15:58,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:15:58,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:15:58,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:15:58,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:15:58,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:15:57" (1/3) ... [2020-10-12 18:15:58,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd88929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:15:58, skipping insertion in model container [2020-10-12 18:15:58,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:15:57" (2/3) ... [2020-10-12 18:15:58,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd88929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:15:58, skipping insertion in model container [2020-10-12 18:15:58,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:15:58" (3/3) ... [2020-10-12 18:15:58,039 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-10-12 18:15:58,049 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:15:58,054 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:15:58,069 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:15:58,093 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:15:58,093 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:15:58,093 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:15:58,093 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:15:58,094 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:15:58,094 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:15:58,094 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:15:58,094 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:15:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-12 18:15:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 18:15:58,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:15:58,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:15:58,120 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:15:58,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:15:58,126 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-10-12 18:15:58,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:15:58,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679019381] [2020-10-12 18:15:58,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:15:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:58,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:58,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:15:58,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-12 18:15:58,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:58,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:15:58,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:15:58,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:15:58,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:15:58,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:15:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:58,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:58,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:58,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:15:58,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:58,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:15:58,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:15:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:15:58,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:58,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:15:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:58,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:58,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:58,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:15:58,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:58,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 18:15:58,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:15:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:15:58,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:15:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:15:58,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679019381] [2020-10-12 18:15:58,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:15:58,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:15:58,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827597202] [2020-10-12 18:15:58,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:15:58,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:15:58,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:15:58,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:15:58,762 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 6 states. [2020-10-12 18:15:58,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:15:58,880 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-10-12 18:15:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:15:58,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-12 18:15:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:15:58,893 INFO L225 Difference]: With dead ends: 33 [2020-10-12 18:15:58,893 INFO L226 Difference]: Without dead ends: 19 [2020-10-12 18:15:58,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:15:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-12 18:15:58,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-12 18:15:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-12 18:15:58,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-12 18:15:58,942 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-10-12 18:15:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:15:58,943 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-12 18:15:58,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:15:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-12 18:15:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 18:15:58,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:15:58,945 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:15:58,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:15:58,946 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:15:58,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:15:58,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1998834103, now seen corresponding path program 1 times [2020-10-12 18:15:58,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:15:58,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978180277] [2020-10-12 18:15:58,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:15:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:58,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 18:15:59,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:59,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-12 18:15:59,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:15:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:15:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:15:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:59,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:15:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:59,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:15:59,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:15:59,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:15:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:15:59,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:59,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:15:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:59,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:15:59,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:59,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 18:15:59,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:15:59,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:59,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:15:59,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:59,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:15:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:59,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:15:59,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:59,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 18:15:59,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:15:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:59,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:15:59,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 18:15:59,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978180277] [2020-10-12 18:15:59,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:15:59,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 18:15:59,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263381765] [2020-10-12 18:15:59,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:15:59,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:15:59,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:15:59,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:15:59,505 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 9 states. [2020-10-12 18:15:59,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:15:59,658 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-10-12 18:15:59,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 18:15:59,658 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-12 18:15:59,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:15:59,659 INFO L225 Difference]: With dead ends: 26 [2020-10-12 18:15:59,660 INFO L226 Difference]: Without dead ends: 22 [2020-10-12 18:15:59,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:15:59,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-12 18:15:59,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-12 18:15:59,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-12 18:15:59,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-12 18:15:59,667 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 20 [2020-10-12 18:15:59,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:15:59,668 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-12 18:15:59,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:15:59,668 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-12 18:15:59,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 18:15:59,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:15:59,670 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:15:59,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:15:59,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:15:59,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:15:59,670 INFO L82 PathProgramCache]: Analyzing trace with hash 293522751, now seen corresponding path program 2 times [2020-10-12 18:15:59,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:15:59,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503884954] [2020-10-12 18:15:59,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:15:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:59,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 18:15:59,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:59,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 18:15:59,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:15:59,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:15:59,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:15:59,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:59,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:15:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:59,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:15:59,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:59,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:15:59,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:15:59,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:59,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:15:59,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:59,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:15:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:59,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:15:59,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:59,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 18:15:59,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:15:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:15:59,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:59,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:15:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:59,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:15:59,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:59,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 18:15:59,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:15:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:15:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:00,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:00,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:00,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:00,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:16:00,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 18:16:00,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503884954] [2020-10-12 18:16:00,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:00,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:16:00,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223346135] [2020-10-12 18:16:00,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:16:00,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:00,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:16:00,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:16:00,064 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 10 states. [2020-10-12 18:16:00,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:00,213 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-10-12 18:16:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:16:00,214 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-10-12 18:16:00,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:00,215 INFO L225 Difference]: With dead ends: 29 [2020-10-12 18:16:00,215 INFO L226 Difference]: Without dead ends: 25 [2020-10-12 18:16:00,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:16:00,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-12 18:16:00,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-12 18:16:00,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-12 18:16:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-10-12 18:16:00,223 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 26 [2020-10-12 18:16:00,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:00,224 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-10-12 18:16:00,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:16:00,224 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-10-12 18:16:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-12 18:16:00,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:00,226 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:00,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:16:00,226 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:00,227 INFO L82 PathProgramCache]: Analyzing trace with hash -547108535, now seen corresponding path program 3 times [2020-10-12 18:16:00,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:00,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588895301] [2020-10-12 18:16:00,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:00,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:00,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:16:00,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:00,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-12 18:16:00,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 18:16:00,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:00,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:00,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:00,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:00,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:16:00,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:00,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:00,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:00,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:00,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:00,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-12 18:16:00,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:16:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:00,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:00,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:00,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:00,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:00,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 18:16:00,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:00,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:00,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:00,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:00,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:00,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:00,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:16:00,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:00,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:00,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:00,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:00,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:00,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:16:00,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:00,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:00,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 18:16:00,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588895301] [2020-10-12 18:16:00,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:00,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 18:16:00,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211163934] [2020-10-12 18:16:00,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:16:00,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:00,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:16:00,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:16:00,951 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 14 states. [2020-10-12 18:16:01,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:01,149 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-10-12 18:16:01,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:16:01,150 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2020-10-12 18:16:01,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:01,151 INFO L225 Difference]: With dead ends: 32 [2020-10-12 18:16:01,152 INFO L226 Difference]: Without dead ends: 28 [2020-10-12 18:16:01,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:16:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-12 18:16:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-12 18:16:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-12 18:16:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-10-12 18:16:01,159 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 32 [2020-10-12 18:16:01,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:01,159 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-10-12 18:16:01,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:16:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-10-12 18:16:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 18:16:01,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:01,161 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:01,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:16:01,161 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:01,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:01,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1152432193, now seen corresponding path program 4 times [2020-10-12 18:16:01,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:01,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691996907] [2020-10-12 18:16:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:01,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:01,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:01,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:01,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:16:01,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:01,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-12 18:16:01,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:01,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:01,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:01,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 18:16:01,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:01,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:01,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:01,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:01,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:01,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:16:01,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:01,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:01,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:01,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:01,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:01,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:01,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-12 18:16:01,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:01,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 18:16:01,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:01,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:01,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:01,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:01,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:01,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:01,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-12 18:16:01,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:02,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:02,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:02,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:02,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:02,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:02,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 18:16:02,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:02,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:02,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:02,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:02,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:02,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:02,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:02,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:16:02,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:02,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:02,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:02,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:02,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:02,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:02,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:02,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:16:02,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 18:16:02,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691996907] [2020-10-12 18:16:02,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:02,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 18:16:02,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977104122] [2020-10-12 18:16:02,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:16:02,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:02,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:16:02,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:16:02,240 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 14 states. [2020-10-12 18:16:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:02,498 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-10-12 18:16:02,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:16:02,499 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2020-10-12 18:16:02,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:02,500 INFO L225 Difference]: With dead ends: 35 [2020-10-12 18:16:02,500 INFO L226 Difference]: Without dead ends: 31 [2020-10-12 18:16:02,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2020-10-12 18:16:02,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-12 18:16:02,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-12 18:16:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-12 18:16:02,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-10-12 18:16:02,508 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 38 [2020-10-12 18:16:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:02,508 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-10-12 18:16:02,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:16:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-10-12 18:16:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 18:16:02,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:02,510 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:02,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:16:02,510 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:02,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:02,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1461718089, now seen corresponding path program 5 times [2020-10-12 18:16:02,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:02,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575633160] [2020-10-12 18:16:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:02,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:02,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 18:16:03,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:03,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-10-12 18:16:03,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:03,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:03,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:16:03,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:03,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:16:03,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:03,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-12 18:16:03,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 18:16:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:03,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:03,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-12 18:16:03,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:03,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:03,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:03,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 18:16:03,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:03,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:03,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:03,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 18:16:03,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:03,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:03,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:16:03,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:03,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:03,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:16:03,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:03,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 18:16:03,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575633160] [2020-10-12 18:16:03,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:03,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 18:16:03,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808651798] [2020-10-12 18:16:03,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:16:03,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:03,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:16:03,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:16:03,957 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 17 states. [2020-10-12 18:16:04,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:04,312 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-10-12 18:16:04,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:16:04,313 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 44 [2020-10-12 18:16:04,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:04,314 INFO L225 Difference]: With dead ends: 38 [2020-10-12 18:16:04,314 INFO L226 Difference]: Without dead ends: 34 [2020-10-12 18:16:04,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:16:04,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-12 18:16:04,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-12 18:16:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-12 18:16:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-10-12 18:16:04,322 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 44 [2020-10-12 18:16:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:04,323 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-10-12 18:16:04,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:16:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-10-12 18:16:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 18:16:04,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:04,325 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:04,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:16:04,326 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:04,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:04,326 INFO L82 PathProgramCache]: Analyzing trace with hash -269168065, now seen corresponding path program 6 times [2020-10-12 18:16:04,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:04,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523700428] [2020-10-12 18:16:04,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:04,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:04,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:16:05,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-12 18:16:05,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:16:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:05,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:05,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:05,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:05,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:05,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:05,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:05,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:05,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:05,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-12 18:16:05,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 18:16:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:05,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:05,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:05,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-12 18:16:05,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:05,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:05,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:05,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:05,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:05,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:05,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-12 18:16:05,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:05,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:06,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:06,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:06,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:06,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 18:16:06,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:06,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:06,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:06,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:06,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:16:06,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:06,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:06,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:06,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:06,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:06,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:06,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:06,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:06,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:16:06,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:06,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-12 18:16:06,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523700428] [2020-10-12 18:16:06,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:06,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 18:16:06,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879158914] [2020-10-12 18:16:06,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:16:06,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:06,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:16:06,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:16:06,290 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 19 states. [2020-10-12 18:16:06,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:06,695 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-10-12 18:16:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 18:16:06,696 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 50 [2020-10-12 18:16:06,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:06,697 INFO L225 Difference]: With dead ends: 41 [2020-10-12 18:16:06,698 INFO L226 Difference]: Without dead ends: 37 [2020-10-12 18:16:06,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:16:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-12 18:16:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-12 18:16:06,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-12 18:16:06,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-10-12 18:16:06,705 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 50 [2020-10-12 18:16:06,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:06,706 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-10-12 18:16:06,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:16:06,706 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-10-12 18:16:06,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 18:16:06,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:06,707 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:06,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:16:06,708 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:06,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:06,708 INFO L82 PathProgramCache]: Analyzing trace with hash 585432905, now seen corresponding path program 7 times [2020-10-12 18:16:06,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:06,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679511617] [2020-10-12 18:16:06,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:07,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:07,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 18:16:07,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:07,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-10-12 18:16:07,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:07,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:07,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:07,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:16:07,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:07,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:07,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:07,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:07,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:07,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:07,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:07,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:07,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:07,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:07,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:07,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:07,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:07,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:07,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-12 18:16:07,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:07,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 18:16:07,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:07,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:07,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:07,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:08,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:08,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:08,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:08,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-12 18:16:08,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:08,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:08,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:08,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:08,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:08,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:08,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-12 18:16:08,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:08,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:08,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:08,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:08,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:08,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:08,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:08,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-12 18:16:08,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:08,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:08,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:08,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:08,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:08,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:08,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:08,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:08,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 18:16:08,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:08,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:08,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:08,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:08,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:08,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:08,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 18:16:08,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:08,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:09,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:09,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:09,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:09,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:09,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:16:09,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:09,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:09,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:09,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:09,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:09,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:09,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:09,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:16:09,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:09,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-10-12 18:16:09,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679511617] [2020-10-12 18:16:09,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:09,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 18:16:09,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760935026] [2020-10-12 18:16:09,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 18:16:09,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:09,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 18:16:09,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:16:09,213 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 21 states. [2020-10-12 18:16:09,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:09,734 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-10-12 18:16:09,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:16:09,735 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 56 [2020-10-12 18:16:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:09,736 INFO L225 Difference]: With dead ends: 44 [2020-10-12 18:16:09,737 INFO L226 Difference]: Without dead ends: 40 [2020-10-12 18:16:09,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 18:16:09,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-12 18:16:09,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-12 18:16:09,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-12 18:16:09,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-10-12 18:16:09,749 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 56 [2020-10-12 18:16:09,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:09,750 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-10-12 18:16:09,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 18:16:09,750 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-10-12 18:16:09,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-12 18:16:09,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:09,753 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:09,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:16:09,753 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:09,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1316711615, now seen corresponding path program 8 times [2020-10-12 18:16:09,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:09,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318921267] [2020-10-12 18:16:09,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:09,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:09,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:10,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:10,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-12 18:16:10,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 875 [2020-10-12 18:16:10,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 18:16:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:10,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:10,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:10,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:10,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:10,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:10,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:10,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:10,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:11,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:11,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:16:11,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:11,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-12 18:16:11,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:11,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 18:16:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:16:11,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:11,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:11,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:11,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:11,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:11,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:11,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-12 18:16:11,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:11,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:11,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:11,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:11,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:11,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:11,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:11,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-12 18:16:11,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:11,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:11,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:11,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:12,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:12,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:12,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:12,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-12 18:16:12,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:12,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:12,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:12,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:12,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:12,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:12,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-12 18:16:12,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:12,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:12,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:12,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:12,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:12,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:12,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:12,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:12,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:12,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 18:16:12,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:12,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:12,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:12,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:12,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:12,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 18:16:12,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:12,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:12,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:12,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:12,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:12,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:16:12,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:12,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:12,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:12,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:12,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:12,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:12,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:12,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:12,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:16:12,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:12,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:12,585 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 8 proven. 128 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-12 18:16:12,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318921267] [2020-10-12 18:16:12,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:12,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 18:16:12,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133384565] [2020-10-12 18:16:12,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 18:16:12,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:12,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 18:16:12,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=462, Unknown=0, NotChecked=0, Total=506 [2020-10-12 18:16:12,598 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 23 states. [2020-10-12 18:16:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:13,226 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-10-12 18:16:13,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 18:16:13,226 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 62 [2020-10-12 18:16:13,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:13,228 INFO L225 Difference]: With dead ends: 47 [2020-10-12 18:16:13,228 INFO L226 Difference]: Without dead ends: 43 [2020-10-12 18:16:13,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:16:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-12 18:16:13,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-12 18:16:13,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-12 18:16:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-10-12 18:16:13,235 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 62 [2020-10-12 18:16:13,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:13,236 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-10-12 18:16:13,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 18:16:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-10-12 18:16:13,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-12 18:16:13,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:13,237 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:13,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:16:13,238 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:13,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:13,238 INFO L82 PathProgramCache]: Analyzing trace with hash 579248713, now seen corresponding path program 9 times [2020-10-12 18:16:13,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:13,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491622579] [2020-10-12 18:16:13,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:13,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:13,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:14,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:14,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 18:16:14,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:14,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 864 [2020-10-12 18:16:14,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 18:16:14,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:14,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:14,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:14,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:14,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:14,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:14,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:14,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:14,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:14,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:14,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:14,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:14,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:14,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:14,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-10-12 18:16:14,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:14,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-12 18:16:14,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:14,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:14,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:14,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:14,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:15,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:15,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:16:15,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:15,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-12 18:16:15,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:15,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:15,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:16:15,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:15,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:15,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:15,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:15,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:15,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-12 18:16:15,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:15,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:15,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:15,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:15,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:16,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:16,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:16,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:16,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-12 18:16:16,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:16,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:16,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:16,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:16,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:16,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:16,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:16,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:16,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:16,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-12 18:16:16,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:16,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:16,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:16,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:16,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:16,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 18:16:16,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:16,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:16,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:16,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:16,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:16,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:16,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:16,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 18:16:16,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:16,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:16,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:16,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:16,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:16,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:16,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:16,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:16,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:16:16,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:16,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:16,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:16,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:16,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:16,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:16,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:16,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:16,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:16,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:16:16,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:16,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:16,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:16,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:16:16,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:16,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:16,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:16,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:16:16,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:16,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:16,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:16,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:16,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 24 proven. 144 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-12 18:16:16,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491622579] [2020-10-12 18:16:16,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:16,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-12 18:16:16,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691615696] [2020-10-12 18:16:17,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:16:17,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:17,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:16:17,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:16:17,001 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 25 states. [2020-10-12 18:16:17,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:17,835 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-12 18:16:17,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 18:16:17,835 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 68 [2020-10-12 18:16:17,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:17,837 INFO L225 Difference]: With dead ends: 50 [2020-10-12 18:16:17,837 INFO L226 Difference]: Without dead ends: 46 [2020-10-12 18:16:17,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=1749, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 18:16:17,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-12 18:16:17,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-12 18:16:17,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-12 18:16:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-10-12 18:16:17,850 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 68 [2020-10-12 18:16:17,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:17,852 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-10-12 18:16:17,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:16:17,852 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-10-12 18:16:17,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-12 18:16:17,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:17,854 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:17,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:16:17,854 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:17,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:17,855 INFO L82 PathProgramCache]: Analyzing trace with hash 418322239, now seen corresponding path program 10 times [2020-10-12 18:16:17,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:17,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649601303] [2020-10-12 18:16:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:17,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:18,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:18,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:18,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:16:18,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 883 [2020-10-12 18:16:18,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:16:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:16:18,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:18,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:18,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:18,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:18,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:18,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:18,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:16:18,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:18,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:18,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:19,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:19,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 18:16:19,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:19,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-12 18:16:19,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:19,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-12 18:16:19,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:19,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:16:19,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:19,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:19,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:19,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:19,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:19,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:19,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-12 18:16:19,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:19,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:19,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:19,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:19,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:20,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:20,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:16:20,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:20,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-12 18:16:20,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:20,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:20,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:16:20,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-12 18:16:20,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:20,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:20,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:20,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:20,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-12 18:16:20,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:20,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:20,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:20,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:20,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:20,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:20,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-12 18:16:20,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:20,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:20,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:20,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:20,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:20,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:20,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:20,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-12 18:16:20,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:20,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:20,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:20,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:21,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:21,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:21,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:21,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 18:16:21,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:21,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:21,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:21,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:21,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:21,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:21,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:21,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 18:16:21,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:21,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:21,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:21,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:21,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:21,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:21,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:16:21,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:21,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:21,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:21,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:21,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:21,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:21,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:21,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:21,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:16:21,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:21,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:21,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:21,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:21,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:21,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:21,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:21,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:16:21,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:21,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:21,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:21,498 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 20 proven. 190 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-12 18:16:21,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649601303] [2020-10-12 18:16:21,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:21,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-12 18:16:21,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21443534] [2020-10-12 18:16:21,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-12 18:16:21,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:21,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-12 18:16:21,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=650, Unknown=0, NotChecked=0, Total=702 [2020-10-12 18:16:21,501 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 27 states. [2020-10-12 18:16:22,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:22,406 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2020-10-12 18:16:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:16:22,406 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 74 [2020-10-12 18:16:22,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:22,408 INFO L225 Difference]: With dead ends: 53 [2020-10-12 18:16:22,408 INFO L226 Difference]: Without dead ends: 49 [2020-10-12 18:16:22,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=157, Invalid=2099, Unknown=0, NotChecked=0, Total=2256 [2020-10-12 18:16:22,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-12 18:16:22,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-12 18:16:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-12 18:16:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2020-10-12 18:16:22,416 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 74 [2020-10-12 18:16:22,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:22,416 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2020-10-12 18:16:22,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-12 18:16:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2020-10-12 18:16:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 18:16:22,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:22,418 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:22,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:16:22,418 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:22,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:22,419 INFO L82 PathProgramCache]: Analyzing trace with hash 584643913, now seen corresponding path program 11 times [2020-10-12 18:16:22,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:22,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390942347] [2020-10-12 18:16:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:22,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:22,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:23,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:23,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 18:16:23,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1516 [2020-10-12 18:16:23,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:16:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 18:16:23,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:23,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:23,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:23,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:23,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:23,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:23,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:16:23,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:23,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:23,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:23,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:23,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:24,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:24,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 18:16:24,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:24,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-12 18:16:24,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-12 18:16:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 18:16:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:24,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:24,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:25,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:25,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 18:16:25,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:25,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 692 [2020-10-12 18:16:25,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:16:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:25,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:16:25,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:25,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:25,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:25,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:25,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:25,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-12 18:16:25,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:25,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:25,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:25,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:25,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:25,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:16:25,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:25,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-12 18:16:25,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:16:25,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:25,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:25,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:26,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:26,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-12 18:16:26,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:26,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:26,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:26,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:26,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:26,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 18:16:26,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:26,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:26,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:26,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:26,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:26,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 18:16:26,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:26,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:26,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:26,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:26,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:26,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 18:16:26,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:26,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:26,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:26,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:26,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:26,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:26,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 18:16:26,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:26,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:26,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:26,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:26,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:26,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:16:26,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:26,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:26,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:26,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:26,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:26,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:16:26,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:26,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:26,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:26,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:26,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:26,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:26,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:16:26,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:26,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:26,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:27,051 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 18 proven. 245 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-12 18:16:27,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390942347] [2020-10-12 18:16:27,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:27,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-12 18:16:27,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399299280] [2020-10-12 18:16:27,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-12 18:16:27,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:27,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-12 18:16:27,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=808, Unknown=0, NotChecked=0, Total=870 [2020-10-12 18:16:27,053 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 30 states. [2020-10-12 18:16:28,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:28,128 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-10-12 18:16:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 18:16:28,129 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 80 [2020-10-12 18:16:28,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:28,130 INFO L225 Difference]: With dead ends: 56 [2020-10-12 18:16:28,130 INFO L226 Difference]: Without dead ends: 52 [2020-10-12 18:16:28,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=200, Invalid=2556, Unknown=0, NotChecked=0, Total=2756 [2020-10-12 18:16:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-12 18:16:28,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-12 18:16:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-12 18:16:28,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2020-10-12 18:16:28,138 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 80 [2020-10-12 18:16:28,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:28,139 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2020-10-12 18:16:28,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-12 18:16:28,139 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2020-10-12 18:16:28,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-12 18:16:28,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:28,140 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:28,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:16:28,140 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:28,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:28,140 INFO L82 PathProgramCache]: Analyzing trace with hash -195309121, now seen corresponding path program 12 times [2020-10-12 18:16:28,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:28,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334300135] [2020-10-12 18:16:28,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:28,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:28,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:28,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:28,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 18:16:28,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:28,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-10-12 18:16:28,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:16:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 18:16:28,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:28,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:28,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:28,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:28,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:28,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:28,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:28,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:28,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:28,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:28,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:28,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:28,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:29,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:29,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:29,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:16:29,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:29,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-10-12 18:16:29,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 53 [2020-10-12 18:16:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 18:16:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:29,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:29,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:29,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:29,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 18:16:29,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:29,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-12 18:16:29,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:16:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 18:16:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:29,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:29,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:30,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:30,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 18:16:30,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:30,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-12 18:16:30,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:16:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:16:30,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:30,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:30,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:30,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:30,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:30,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:30,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-12 18:16:30,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:30,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:30,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:30,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:30,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:30,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:16:30,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:30,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-12 18:16:30,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:30,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:16:30,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:30,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:30,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:31,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:31,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:31,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-12 18:16:31,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:31,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:31,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:31,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:31,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:31,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:31,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:31,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:31,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 18:16:31,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:31,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:31,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:31,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:31,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 18:16:31,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:31,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:31,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:31,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:31,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:31,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:31,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 18:16:31,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:31,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:31,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:31,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:31,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:31,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:31,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:31,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:31,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 18:16:31,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:31,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:31,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:31,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:31,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:31,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:16:31,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:31,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:31,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:31,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:31,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:31,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:16:31,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:32,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:32,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:32,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:32,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:32,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:32,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:16:32,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:32,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 9 proven. 302 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-12 18:16:32,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334300135] [2020-10-12 18:16:32,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:32,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-12 18:16:32,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489722247] [2020-10-12 18:16:32,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-12 18:16:32,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:32,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-12 18:16:32,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=925, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:16:32,134 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 32 states. [2020-10-12 18:16:33,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:33,360 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-10-12 18:16:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 18:16:33,360 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 86 [2020-10-12 18:16:33,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:33,362 INFO L225 Difference]: With dead ends: 59 [2020-10-12 18:16:33,362 INFO L226 Difference]: Without dead ends: 55 [2020-10-12 18:16:33,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=217, Invalid=2975, Unknown=0, NotChecked=0, Total=3192 [2020-10-12 18:16:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-12 18:16:33,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-12 18:16:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-12 18:16:33,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-10-12 18:16:33,383 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 86 [2020-10-12 18:16:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:33,386 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-10-12 18:16:33,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-12 18:16:33,387 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-10-12 18:16:33,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 18:16:33,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:33,390 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:33,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:16:33,390 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:33,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:33,391 INFO L82 PathProgramCache]: Analyzing trace with hash 498071625, now seen corresponding path program 13 times [2020-10-12 18:16:33,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:33,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969379041] [2020-10-12 18:16:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:33,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:33,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:34,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:34,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:16:34,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-10-12 18:16:34,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:16:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 18:16:34,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 18:16:34,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:34,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:34,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:34,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:34,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:34,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:34,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:34,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:34,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:34,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:34,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:34,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:34,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:34,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 18:16:34,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:34,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-10-12 18:16:34,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-12 18:16:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 18:16:34,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:34,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:35,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:35,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:16:35,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:35,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-12 18:16:35,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:35,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:16:35,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:35,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 18:16:35,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:35,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:35,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 18:16:36,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:36,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-12 18:16:36,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:16:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 18:16:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:36,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:36,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:36,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 18:16:36,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:36,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-12 18:16:36,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:16:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:16:36,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:36,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:36,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:36,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:36,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:36,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-12 18:16:36,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:36,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:36,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:36,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:16:36,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:36,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-12 18:16:36,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:16:36,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:37,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:37,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:37,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:37,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:37,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-12 18:16:37,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:37,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:37,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:37,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:37,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:37,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:37,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:37,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:37,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:37,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-12 18:16:37,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:37,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:37,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:37,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:37,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:37,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:38,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:38,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 18:16:38,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:38,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:38,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:38,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:38,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 18:16:38,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:38,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:38,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:38,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:38,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 18:16:38,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:38,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:38,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:38,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:38,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:16:38,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:38,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:38,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:38,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:38,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:38,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:16:38,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:38,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:38,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:38,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:16:38,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:38,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 35 proven. 280 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2020-10-12 18:16:38,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969379041] [2020-10-12 18:16:38,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:38,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-12 18:16:38,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925988253] [2020-10-12 18:16:38,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-12 18:16:38,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:38,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-12 18:16:38,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=992, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 18:16:38,726 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 33 states. [2020-10-12 18:16:40,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:40,138 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-10-12 18:16:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 18:16:40,139 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 92 [2020-10-12 18:16:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:40,140 INFO L225 Difference]: With dead ends: 62 [2020-10-12 18:16:40,141 INFO L226 Difference]: Without dead ends: 58 [2020-10-12 18:16:40,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=199, Invalid=3341, Unknown=0, NotChecked=0, Total=3540 [2020-10-12 18:16:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-12 18:16:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-12 18:16:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-12 18:16:40,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-10-12 18:16:40,148 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 92 [2020-10-12 18:16:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:40,149 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-10-12 18:16:40,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-12 18:16:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-10-12 18:16:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-12 18:16:40,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:40,150 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:40,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:16:40,150 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:40,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1462920129, now seen corresponding path program 14 times [2020-10-12 18:16:40,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:40,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105229064] [2020-10-12 18:16:40,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:40,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:40,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:41,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:41,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 18:16:41,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:41,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-10-12 18:16:41,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:41,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:16:41,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:41,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-12 18:16:41,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:41,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:41,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:41,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:41,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:41,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:41,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:41,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:41,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:41,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:42,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:42,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 18:16:42,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1358 [2020-10-12 18:16:42,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 61 [2020-10-12 18:16:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 18:16:42,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:42,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:42,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:43,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 18:16:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-12 18:16:43,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:16:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 18:16:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:43,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:43,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:43,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:43,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:16:43,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:43,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-10-12 18:16:43,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:16:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 18:16:43,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:43,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:44,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:44,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 18:16:44,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-12 18:16:44,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:16:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 18:16:44,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:44,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:44,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:44,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:44,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 18:16:44,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:44,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-12 18:16:44,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:16:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:16:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:44,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:44,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:45,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:45,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:45,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-12 18:16:45,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:45,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:45,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:45,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:45,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:45,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:16:45,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-12 18:16:45,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:16:45,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:45,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:45,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:45,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:45,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-12 18:16:45,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:45,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:45,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:45,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:45,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:45,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:45,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:45,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-12 18:16:45,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:45,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:45,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:45,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:45,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:45,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:45,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:46,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:46,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-12 18:16:46,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:46,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:46,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:46,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:46,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:46,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:46,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:46,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:46,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 18:16:46,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:46,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:46,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:46,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:46,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:46,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:46,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 18:16:46,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:46,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:46,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:46,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:46,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:46,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:46,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:16:46,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:46,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:46,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:46,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:46,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:46,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:46,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:46,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:46,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:46,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:46,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:16:46,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:46,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:46,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:46,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:46,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:46,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:46,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:46,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:16:46,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:46,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:46,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 62 proven. 334 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-10-12 18:16:46,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105229064] [2020-10-12 18:16:46,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:46,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-12 18:16:46,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351916548] [2020-10-12 18:16:46,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-12 18:16:46,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:46,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-12 18:16:46,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=1122, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 18:16:46,836 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 35 states. [2020-10-12 18:16:48,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:48,408 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2020-10-12 18:16:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:16:48,413 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 98 [2020-10-12 18:16:48,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:48,415 INFO L225 Difference]: With dead ends: 65 [2020-10-12 18:16:48,415 INFO L226 Difference]: Without dead ends: 61 [2020-10-12 18:16:48,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=213, Invalid=3819, Unknown=0, NotChecked=0, Total=4032 [2020-10-12 18:16:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-12 18:16:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-12 18:16:48,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-12 18:16:48,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-10-12 18:16:48,422 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 98 [2020-10-12 18:16:48,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:48,422 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-10-12 18:16:48,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-12 18:16:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-10-12 18:16:48,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:16:48,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:48,424 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:48,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:16:48,424 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:48,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:48,424 INFO L82 PathProgramCache]: Analyzing trace with hash 2044701513, now seen corresponding path program 15 times [2020-10-12 18:16:48,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:48,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117499961] [2020-10-12 18:16:48,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:48,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:48,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:49,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:49,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 18:16:49,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1330 [2020-10-12 18:16:49,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:16:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 18:16:49,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:49,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:49,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:49,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:49,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:49,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:49,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:49,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:49,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:49,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:49,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:49,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:50,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:50,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-12 18:16:50,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:50,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 798 [2020-10-12 18:16:50,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 65 [2020-10-12 18:16:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 18:16:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:50,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:50,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:51,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:51,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 18:16:51,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:51,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 965 [2020-10-12 18:16:51,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:16:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 18:16:51,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:51,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:51,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:52,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:52,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 18:16:52,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 628 [2020-10-12 18:16:52,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:16:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 18:16:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:52,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:52,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:52,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:52,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:16:52,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:52,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-12 18:16:52,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:16:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 18:16:52,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:52,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:52,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:53,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:53,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 18:16:53,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:53,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-12 18:16:53,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:16:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 18:16:53,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:53,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:53,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:53,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:53,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 18:16:53,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:53,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-12 18:16:53,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:16:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:16:53,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:53,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:53,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:54,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:54,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:54,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-12 18:16:54,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:54,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:54,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:54,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:54,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:54,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:54,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:54,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:16:54,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-12 18:16:54,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:16:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:54,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:54,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:54,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:54,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:16:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 18:16:54,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:16:54,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:54,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:54,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:54,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:54,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:16:54,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 18:16:54,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:54,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:16:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:54,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:54,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:54,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:54,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:16:54,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 18:16:54,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:16:54,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:54,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:54,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:55,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:55,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:16:55,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:55,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 18:16:55,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:16:55,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:55,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:55,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:55,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:55,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:16:55,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 18:16:55,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:16:55,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:55,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:55,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:55,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:55,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:16:55,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:55,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:16:55,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:55,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:55,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:16:55,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:55,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:55,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:55,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:55,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:16:55,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:55,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:16:55,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:55,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:16:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:55,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:55,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:55,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:55,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:55,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:55,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:16:55,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:55,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:55,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:55,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:55,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 32 proven. 419 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2020-10-12 18:16:55,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117499961] [2020-10-12 18:16:55,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:55,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-12 18:16:55,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067667959] [2020-10-12 18:16:55,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-12 18:16:55,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:55,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-12 18:16:55,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1327, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 18:16:55,661 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 38 states. [2020-10-12 18:16:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:57,467 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2020-10-12 18:16:57,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 18:16:57,468 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 104 [2020-10-12 18:16:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:57,470 INFO L225 Difference]: With dead ends: 68 [2020-10-12 18:16:57,470 INFO L226 Difference]: Without dead ends: 64 [2020-10-12 18:16:57,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=265, Invalid=4427, Unknown=0, NotChecked=0, Total=4692 [2020-10-12 18:16:57,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-12 18:16:57,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-12 18:16:57,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-12 18:16:57,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2020-10-12 18:16:57,477 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 104 [2020-10-12 18:16:57,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:57,478 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2020-10-12 18:16:57,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-12 18:16:57,478 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2020-10-12 18:16:57,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 18:16:57,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:57,479 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:57,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 18:16:57,480 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:57,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:57,480 INFO L82 PathProgramCache]: Analyzing trace with hash -514820417, now seen corresponding path program 16 times [2020-10-12 18:16:57,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:57,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720917939] [2020-10-12 18:16:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:57,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:57,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:58,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:58,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 18:16:58,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:58,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1379 [2020-10-12 18:16:58,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-12 18:16:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 18:16:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:58,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:58,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:58,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:58,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:58,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:58,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:58,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:58,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:58,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:59,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:59,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-12 18:16:59,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:59,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-12 18:16:59,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 69 [2020-10-12 18:16:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 18:16:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:59,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:16:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:59,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:00,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:00,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-12 18:17:00,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:00,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 854 [2020-10-12 18:17:00,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:17:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 18:17:00,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:00,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:00,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:01,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:01,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 18:17:01,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:01,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-10-12 18:17:01,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:17:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 18:17:01,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:01,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:01,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:02,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:02,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 18:17:02,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:02,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-10-12 18:17:02,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:02,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:17:02,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:02,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 18:17:02,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:02,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:02,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:02,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:02,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 18:17:02,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:02,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-12 18:17:02,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:02,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:17:02,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:02,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 18:17:02,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:02,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:02,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:03,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:03,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 18:17:03,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-12 18:17:03,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:17:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 18:17:03,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:03,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:03,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:03,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:03,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 18:17:03,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:03,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-12 18:17:03,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:17:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:17:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:03,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:04,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:04,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:17:04,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:04,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-12 18:17:04,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:17:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:17:04,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:04,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:04,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:04,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:04,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:17:04,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:04,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-12 18:17:04,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:04,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:17:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:17:04,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:04,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:04,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:04,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:04,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 18:17:04,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:04,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-12 18:17:04,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:04,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:17:04,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:04,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:17:04,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:04,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:04,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:04,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:04,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:17:04,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:04,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-12 18:17:04,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:17:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 18:17:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:05,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:05,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:05,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:17:05,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 18:17:05,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:17:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:17:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:05,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:05,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:05,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:05,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:17:05,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:05,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 18:17:05,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:17:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 18:17:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:17:05,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:05,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:05,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:05,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:17:05,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 18:17:05,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:17:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:17:05,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:05,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:05,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:05,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 18:17:05,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:17:05,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:17:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:17:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:05,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:05,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:05,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:05,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:17:05,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:05,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:17:05,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:05,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:17:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:17:05,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:05,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:17:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:05,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:05,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:05,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:17:05,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:05,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:17:05,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:17:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:17:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:17:05,939 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 288 proven. 164 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2020-10-12 18:17:05,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720917939] [2020-10-12 18:17:05,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:17:05,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-12 18:17:05,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630887968] [2020-10-12 18:17:05,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-12 18:17:05,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:17:05,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-12 18:17:05,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1311, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:17:05,942 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 40 states. [2020-10-12 18:17:07,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:17:07,560 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-12 18:17:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 18:17:07,560 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 110 [2020-10-12 18:17:07,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:17:07,561 INFO L225 Difference]: With dead ends: 64 [2020-10-12 18:17:07,561 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 18:17:07,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 26 SyntacticMatches, 9 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=897, Invalid=4359, Unknown=0, NotChecked=0, Total=5256 [2020-10-12 18:17:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 18:17:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 18:17:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 18:17:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 18:17:07,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2020-10-12 18:17:07,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:17:07,566 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 18:17:07,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-12 18:17:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 18:17:07,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 18:17:07,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 18:17:07,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 18:17:07,615 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-12 18:17:07,615 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 18:17:07,615 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-10-12 18:17:07,616 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2020-10-12 18:17:07,616 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2020-10-12 18:17:07,616 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2020-10-12 18:17:07,616 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (<= |hanoi_#in~n| hanoi_~n) (<= hanoi_~n |hanoi_#in~n|)) [2020-10-12 18:17:07,616 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-12 18:17:07,616 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 18:17:07,616 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-12 18:17:07,617 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 18:17:07,617 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 18:17:07,617 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-12 18:17:07,617 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-10-12 18:17:07,617 INFO L268 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-10-12 18:17:07,617 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2020-10-12 18:17:07,617 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-10-12 18:17:07,618 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-10-12 18:17:07,618 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-10-12 18:17:07,618 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2020-10-12 18:17:07,618 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2020-10-12 18:17:07,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:17:07 BoogieIcfgContainer [2020-10-12 18:17:07,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 18:17:07,626 INFO L168 Benchmark]: Toolchain (without parser) took 70177.74 ms. Allocated memory was 138.9 MB in the beginning and 997.7 MB in the end (delta: 858.8 MB). Free memory was 102.4 MB in the beginning and 165.0 MB in the end (delta: -62.6 MB). Peak memory consumption was 796.2 MB. Max. memory is 7.1 GB. [2020-10-12 18:17:07,626 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 18:17:07,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.86 ms. Allocated memory is still 138.9 MB. Free memory was 102.2 MB in the beginning and 92.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-10-12 18:17:07,628 INFO L168 Benchmark]: Boogie Preprocessor took 23.06 ms. Allocated memory is still 138.9 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-12 18:17:07,628 INFO L168 Benchmark]: RCFGBuilder took 316.32 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 91.5 MB in the beginning and 170.5 MB in the end (delta: -79.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-10-12 18:17:07,629 INFO L168 Benchmark]: TraceAbstraction took 69590.66 ms. Allocated memory was 202.4 MB in the beginning and 997.7 MB in the end (delta: 795.3 MB). Free memory was 169.8 MB in the beginning and 165.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 800.2 MB. Max. memory is 7.1 GB. [2020-10-12 18:17:07,632 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 242.86 ms. Allocated memory is still 138.9 MB. Free memory was 102.2 MB in the beginning and 92.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.06 ms. Allocated memory is still 138.9 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 316.32 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 91.5 MB in the beginning and 170.5 MB in the end (delta: -79.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 69590.66 ms. Allocated memory was 202.4 MB in the beginning and 997.7 MB in the end (delta: 795.3 MB). Free memory was 169.8 MB in the beginning and 165.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 800.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 69.4s, OverallIterations: 17, TraceHistogramMax: 17, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 345 SDtfs, 268 SDslu, 5724 SDs, 0 SdLazy, 8716 SolverSat, 238 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 986 GetRequests, 327 SyntacticMatches, 11 SemanticMatches, 648 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3387 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 55.3s InterpolantComputationTime, 1054 NumberOfCodeBlocks, 1054 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1037 ConstructedInterpolants, 0 QuantifiedInterpolants, 357260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2150/4624 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...