/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=NARROWEST --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/eca-rers2012/Problem14_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:47:51,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:47:51,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:47:51,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:47:51,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:47:51,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:47:51,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:47:51,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:47:51,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:47:51,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:47:51,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:47:51,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:47:51,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:47:51,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:47:51,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:47:51,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:47:51,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:47:51,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:47:51,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:47:51,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:47:51,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:47:51,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:47:51,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:47:51,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:47:51,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:47:51,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:47:51,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:47:51,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:47:51,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:47:51,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:47:51,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:47:51,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:47:51,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:47:51,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:47:51,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:47:51,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:47:51,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:47:51,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:47:51,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:47:51,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:47:51,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:47:51,460 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 [2020-10-13 08:47:51,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:47:51,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:47:51,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:47:51,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:47:51,505 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:47:51,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:47:51,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:47:51,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:47:51,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:47:51,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:47:51,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:47:51,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:47:51,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:47:51,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:47:51,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:47:51,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:47:51,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:47:51,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:47:51,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:47:51,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:47:51,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:47:51,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:47:51,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:47:51,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:47:51,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:47:51,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:47:51,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:47:51,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:47:51,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:47:51,512 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:47:51,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:47:51,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:47:51,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:47:51,846 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:47:51,847 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:47:51,847 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label12.c [2020-10-13 08:47:51,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4865e2411/89245a5a6a024c0e9f07d5c6db84da06/FLAG200100237 [2020-10-13 08:47:52,517 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:47:52,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label12.c [2020-10-13 08:47:52,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4865e2411/89245a5a6a024c0e9f07d5c6db84da06/FLAG200100237 [2020-10-13 08:47:52,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4865e2411/89245a5a6a024c0e9f07d5c6db84da06 [2020-10-13 08:47:52,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:47:52,773 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:47:52,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:47:52,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:47:52,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:47:52,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:47:52" (1/1) ... [2020-10-13 08:47:52,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d693c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:52, skipping insertion in model container [2020-10-13 08:47:52,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:47:52" (1/1) ... [2020-10-13 08:47:52,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:47:52,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:47:53,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:47:53,425 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:47:53,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:47:53,670 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:47:53,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53 WrapperNode [2020-10-13 08:47:53,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:47:53,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:47:53,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:47:53,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:47:53,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (1/1) ... [2020-10-13 08:47:53,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (1/1) ... [2020-10-13 08:47:53,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (1/1) ... [2020-10-13 08:47:53,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (1/1) ... [2020-10-13 08:47:53,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (1/1) ... [2020-10-13 08:47:53,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (1/1) ... [2020-10-13 08:47:53,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (1/1) ... [2020-10-13 08:47:53,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:47:53,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:47:53,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:47:53,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:47:53,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (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 [2020-10-13 08:47:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:47:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:47:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:47:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:47:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:47:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:47:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:47:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:47:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:47:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:47:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:47:55,478 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:47:55,479 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:47:55,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:47:55 BoogieIcfgContainer [2020-10-13 08:47:55,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:47:55,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:47:55,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:47:55,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:47:55,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:47:52" (1/3) ... [2020-10-13 08:47:55,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bfa23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:47:55, skipping insertion in model container [2020-10-13 08:47:55,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:53" (2/3) ... [2020-10-13 08:47:55,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bfa23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:47:55, skipping insertion in model container [2020-10-13 08:47:55,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:47:55" (3/3) ... [2020-10-13 08:47:55,495 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label12.c [2020-10-13 08:47:55,506 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:47:55,514 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:47:55,528 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:47:55,555 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:47:55,555 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:47:55,555 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:47:55,556 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:47:55,556 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:47:55,556 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:47:55,556 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:47:55,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:47:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:47:55,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 08:47:55,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:55,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:55,588 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:55,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:55,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1936956757, now seen corresponding path program 1 times [2020-10-13 08:47:55,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:55,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565742235] [2020-10-13 08:47:55,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:55,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:56,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:56,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 08:47:56,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:56,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-13 08:47:56,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:47:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:47:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:47:56,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:47:56,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:56,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:56,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:56,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:56,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:56,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:47:56,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:47:56,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:56,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565742235] [2020-10-13 08:47:56,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:47:56,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:47:56,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082823159] [2020-10-13 08:47:56,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:47:56,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:56,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:47:56,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:47:56,274 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:47:57,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:57,957 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-13 08:47:57,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:57,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-13 08:47:57,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:57,975 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:47:57,975 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:47:57,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:58,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:47:58,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:47:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:47:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-13 08:47:58,063 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 14 [2020-10-13 08:47:58,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:58,063 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-13 08:47:58,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:47:58,064 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-13 08:47:58,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-13 08:47:58,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:58,068 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:58,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:47:58,069 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash 120611477, now seen corresponding path program 1 times [2020-10-13 08:47:58,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:58,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836559710] [2020-10-13 08:47:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:58,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:58,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:58,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:58,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 08:47:58,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:58,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-10-13 08:47:58,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:47:58,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:47:58,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:58,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:58,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:58,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:58,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:58,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:47:58,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:58,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:58,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:58,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:58,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:47:58,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:58,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 08:47:58,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:47:58,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:58,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836559710] [2020-10-13 08:47:58,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:58,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:47:58,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258070409] [2020-10-13 08:47:58,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:47:58,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:58,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:47:58,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:58,948 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 5 states. [2020-10-13 08:48:00,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:00,528 INFO L93 Difference]: Finished difference Result 1118 states and 1662 transitions. [2020-10-13 08:48:00,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:00,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-10-13 08:48:00,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:00,547 INFO L225 Difference]: With dead ends: 1118 [2020-10-13 08:48:00,547 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:48:00,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:00,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:48:00,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:48:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:48:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 999 transitions. [2020-10-13 08:48:00,601 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 999 transitions. Word has length 83 [2020-10-13 08:48:00,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:00,602 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 999 transitions. [2020-10-13 08:48:00,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 999 transitions. [2020-10-13 08:48:00,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-13 08:48:00,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:00,611 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:00,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:48:00,611 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:00,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:00,612 INFO L82 PathProgramCache]: Analyzing trace with hash -899509585, now seen corresponding path program 1 times [2020-10-13 08:48:00,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:00,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744672869] [2020-10-13 08:48:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:03,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:03,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:48:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2669 [2020-10-13 08:48:03,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-13 08:48:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:48:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:03,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:03,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:03,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:03,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:03,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:03,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:03,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:03,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:03,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:03,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:03,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:03,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:03,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:03,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:48:03,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:03,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:03,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:03,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:03,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:03,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:48:03,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:03,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 08:48:03,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:03,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:03,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:48:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:03,578 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:48:03,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744672869] [2020-10-13 08:48:03,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:03,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:03,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518252772] [2020-10-13 08:48:03,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:03,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:03,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:03,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:03,581 INFO L87 Difference]: Start difference. First operand 744 states and 999 transitions. Second operand 5 states. [2020-10-13 08:48:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:05,245 INFO L93 Difference]: Finished difference Result 1854 states and 2566 transitions. [2020-10-13 08:48:05,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:05,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-10-13 08:48:05,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:05,259 INFO L225 Difference]: With dead ends: 1854 [2020-10-13 08:48:05,259 INFO L226 Difference]: Without dead ends: 1116 [2020-10-13 08:48:05,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-13 08:48:05,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1112. [2020-10-13 08:48:05,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1112 states. [2020-10-13 08:48:05,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1451 transitions. [2020-10-13 08:48:05,305 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1451 transitions. Word has length 166 [2020-10-13 08:48:05,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:05,306 INFO L479 AbstractCegarLoop]: Abstraction has 1112 states and 1451 transitions. [2020-10-13 08:48:05,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1451 transitions. [2020-10-13 08:48:05,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-13 08:48:05,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:05,312 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:05,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:48:05,312 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:05,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:05,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1308642648, now seen corresponding path program 1 times [2020-10-13 08:48:05,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:05,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281063734] [2020-10-13 08:48:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:05,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:05,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:05,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:05,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:06,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 08:48:07,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:07,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2462 [2020-10-13 08:48:07,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:07,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-13 08:48:07,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:48:07,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:07,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:07,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:48:07,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:07,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:07,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:07,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:07,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:07,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:08,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:08,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:48:08,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:08,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 08:48:08,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:48:08,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:08,086 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:48:08,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281063734] [2020-10-13 08:48:08,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:08,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:08,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205850214] [2020-10-13 08:48:08,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:08,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:08,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:08,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:08,093 INFO L87 Difference]: Start difference. First operand 1112 states and 1451 transitions. Second operand 5 states. [2020-10-13 08:48:09,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:09,665 INFO L93 Difference]: Finished difference Result 2590 states and 3472 transitions. [2020-10-13 08:48:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:09,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-10-13 08:48:09,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:09,674 INFO L225 Difference]: With dead ends: 2590 [2020-10-13 08:48:09,675 INFO L226 Difference]: Without dead ends: 1484 [2020-10-13 08:48:09,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:09,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2020-10-13 08:48:09,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1480. [2020-10-13 08:48:09,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1480 states. [2020-10-13 08:48:09,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1904 transitions. [2020-10-13 08:48:09,739 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1904 transitions. Word has length 177 [2020-10-13 08:48:09,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:09,741 INFO L479 AbstractCegarLoop]: Abstraction has 1480 states and 1904 transitions. [2020-10-13 08:48:09,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:09,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1904 transitions. [2020-10-13 08:48:09,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-13 08:48:09,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:09,746 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:09,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:48:09,747 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:09,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:09,748 INFO L82 PathProgramCache]: Analyzing trace with hash 287561956, now seen corresponding path program 1 times [2020-10-13 08:48:09,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:09,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697028682] [2020-10-13 08:48:09,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:09,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:09,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:10,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:10,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:13,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:13,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-13 08:48:13,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:13,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3580 [2020-10-13 08:48:13,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:13,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-13 08:48:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:48:13,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:13,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:13,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:13,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:13,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:13,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:48:13,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:13,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:13,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:13,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:13,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:13,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:13,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:13,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:48:13,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:13,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:13,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:13,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:13,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:13,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:13,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:13,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:13,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:48:13,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:13,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:48:13,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 08:48:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:48:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:48:13,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697028682] [2020-10-13 08:48:13,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:13,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:48:13,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022007439] [2020-10-13 08:48:13,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:48:13,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:13,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:48:13,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:13,677 INFO L87 Difference]: Start difference. First operand 1480 states and 1904 transitions. Second operand 6 states. [2020-10-13 08:48:16,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:16,001 INFO L93 Difference]: Finished difference Result 4430 states and 5938 transitions. [2020-10-13 08:48:16,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:48:16,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-10-13 08:48:16,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:16,020 INFO L225 Difference]: With dead ends: 4430 [2020-10-13 08:48:16,020 INFO L226 Difference]: Without dead ends: 2956 [2020-10-13 08:48:16,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:48:16,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2020-10-13 08:48:16,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2404. [2020-10-13 08:48:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2404 states. [2020-10-13 08:48:16,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3160 transitions. [2020-10-13 08:48:16,117 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3160 transitions. Word has length 195 [2020-10-13 08:48:16,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:16,118 INFO L479 AbstractCegarLoop]: Abstraction has 2404 states and 3160 transitions. [2020-10-13 08:48:16,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:48:16,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3160 transitions. [2020-10-13 08:48:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-13 08:48:16,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:16,124 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:16,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:48:16,124 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:16,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:16,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2051795499, now seen corresponding path program 1 times [2020-10-13 08:48:16,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:16,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920496804] [2020-10-13 08:48:16,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:16,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:16,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:16,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:17,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-13 08:48:19,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3471 [2020-10-13 08:48:19,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 246 [2020-10-13 08:48:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:48:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:19,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:19,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:19,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:19,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:19,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:19,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 08:48:19,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-13 08:48:19,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:48:19,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:48:20,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920496804] [2020-10-13 08:48:20,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:20,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:20,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040337302] [2020-10-13 08:48:20,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:20,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:20,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:20,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:20,114 INFO L87 Difference]: Start difference. First operand 2404 states and 3160 transitions. Second operand 5 states. [2020-10-13 08:48:21,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:21,729 INFO L93 Difference]: Finished difference Result 5542 states and 7357 transitions. [2020-10-13 08:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:21,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 248 [2020-10-13 08:48:21,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:21,751 INFO L225 Difference]: With dead ends: 5542 [2020-10-13 08:48:21,752 INFO L226 Difference]: Without dead ends: 3144 [2020-10-13 08:48:21,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2020-10-13 08:48:21,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2958. [2020-10-13 08:48:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2958 states. [2020-10-13 08:48:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 3814 transitions. [2020-10-13 08:48:21,845 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 3814 transitions. Word has length 248 [2020-10-13 08:48:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:21,846 INFO L479 AbstractCegarLoop]: Abstraction has 2958 states and 3814 transitions. [2020-10-13 08:48:21,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:21,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 3814 transitions. [2020-10-13 08:48:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-13 08:48:21,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:21,855 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:21,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:48:21,856 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:21,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1883053911, now seen corresponding path program 1 times [2020-10-13 08:48:21,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:21,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604740787] [2020-10-13 08:48:21,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:21,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:21,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:22,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:22,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:25,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:25,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-13 08:48:26,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:48:26,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 08:48:26,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:26,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 319 [2020-10-13 08:48:26,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:48:26,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:26,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:48:26,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:27,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:27,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:27,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:27,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:27,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:48:27,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:27,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:27,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 08:48:27,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:27,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:27,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:27,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:48:27,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:27,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:48:27,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:27,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:27,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-13 08:48:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:27,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:27,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:27,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:48:27,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:27,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 08:48:27,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:27,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:27,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:27,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 08:48:27,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2020-10-13 08:48:27,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604740787] [2020-10-13 08:48:27,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:27,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:27,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918382022] [2020-10-13 08:48:27,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:27,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:27,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:27,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:27,365 INFO L87 Difference]: Start difference. First operand 2958 states and 3814 transitions. Second operand 5 states. [2020-10-13 08:48:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:29,374 INFO L93 Difference]: Finished difference Result 6650 states and 8838 transitions. [2020-10-13 08:48:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:29,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 319 [2020-10-13 08:48:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:29,390 INFO L225 Difference]: With dead ends: 6650 [2020-10-13 08:48:29,391 INFO L226 Difference]: Without dead ends: 3698 [2020-10-13 08:48:29,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:29,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2020-10-13 08:48:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3512. [2020-10-13 08:48:29,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3512 states. [2020-10-13 08:48:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3512 states to 3512 states and 4516 transitions. [2020-10-13 08:48:29,484 INFO L78 Accepts]: Start accepts. Automaton has 3512 states and 4516 transitions. Word has length 319 [2020-10-13 08:48:29,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:29,484 INFO L479 AbstractCegarLoop]: Abstraction has 3512 states and 4516 transitions. [2020-10-13 08:48:29,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:29,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3512 states and 4516 transitions. [2020-10-13 08:48:29,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-13 08:48:29,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:29,498 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:29,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:48:29,498 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:29,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:29,499 INFO L82 PathProgramCache]: Analyzing trace with hash 938381923, now seen corresponding path program 1 times [2020-10-13 08:48:29,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:29,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65066276] [2020-10-13 08:48:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:29,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:32,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-13 08:48:32,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:32,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2705 [2020-10-13 08:48:32,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-13 08:48:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:48:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:32,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:32,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:32,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:32,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:32,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:32,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:32,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:32,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:32,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:32,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:32,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:32,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:32,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 08:48:32,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:32,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:48:32,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:32,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 08:48:32,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 08:48:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:32,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:32,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:48:32,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:32,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-13 08:48:32,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:32,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:32,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:32,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:48:32,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 08:48:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:32,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:32,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:48:32,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 08:48:32,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:48:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 94 proven. 111 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-13 08:48:33,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65066276] [2020-10-13 08:48:33,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:33,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:33,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609477688] [2020-10-13 08:48:33,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:33,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:33,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:33,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:33,125 INFO L87 Difference]: Start difference. First operand 3512 states and 4516 transitions. Second operand 7 states. [2020-10-13 08:48:34,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:34,896 INFO L93 Difference]: Finished difference Result 7229 states and 9985 transitions. [2020-10-13 08:48:34,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:48:34,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2020-10-13 08:48:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:34,919 INFO L225 Difference]: With dead ends: 7229 [2020-10-13 08:48:34,919 INFO L226 Difference]: Without dead ends: 3682 [2020-10-13 08:48:34,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:48:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2020-10-13 08:48:35,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3546. [2020-10-13 08:48:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3546 states. [2020-10-13 08:48:35,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 4611 transitions. [2020-10-13 08:48:35,063 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 4611 transitions. Word has length 349 [2020-10-13 08:48:35,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:35,063 INFO L479 AbstractCegarLoop]: Abstraction has 3546 states and 4611 transitions. [2020-10-13 08:48:35,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 4611 transitions. [2020-10-13 08:48:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-13 08:48:35,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:35,077 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:35,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:48:35,077 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:35,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:35,078 INFO L82 PathProgramCache]: Analyzing trace with hash -281179589, now seen corresponding path program 1 times [2020-10-13 08:48:35,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:35,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605192049] [2020-10-13 08:48:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:35,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-10-13 08:48:37,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:37,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2243 [2020-10-13 08:48:37,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 08:48:37,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:48:37,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:37,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:37,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:37,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:37,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:37,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:37,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:37,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:37,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:37,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 08:48:37,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:37,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:48:37,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 08:48:37,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:37,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 08:48:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:37,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:48:37,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-13 08:48:37,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:48:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:37,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-13 08:48:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:37,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:37,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:37,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:48:37,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:48:37,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:48:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:38,123 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 106 proven. 111 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-13 08:48:38,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605192049] [2020-10-13 08:48:38,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:38,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:38,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48283550] [2020-10-13 08:48:38,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:38,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:38,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:38,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:38,125 INFO L87 Difference]: Start difference. First operand 3546 states and 4611 transitions. Second operand 7 states. [2020-10-13 08:48:39,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:39,880 INFO L93 Difference]: Finished difference Result 7262 states and 9910 transitions. [2020-10-13 08:48:39,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 08:48:39,881 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2020-10-13 08:48:39,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:39,899 INFO L225 Difference]: With dead ends: 7262 [2020-10-13 08:48:39,899 INFO L226 Difference]: Without dead ends: 3632 [2020-10-13 08:48:39,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:48:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2020-10-13 08:48:40,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3538. [2020-10-13 08:48:40,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3538 states. [2020-10-13 08:48:40,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 4160 transitions. [2020-10-13 08:48:40,013 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 4160 transitions. Word has length 361 [2020-10-13 08:48:40,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:40,013 INFO L479 AbstractCegarLoop]: Abstraction has 3538 states and 4160 transitions. [2020-10-13 08:48:40,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 4160 transitions. [2020-10-13 08:48:40,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2020-10-13 08:48:40,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:40,029 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:40,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:48:40,029 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:40,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:40,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2097869683, now seen corresponding path program 1 times [2020-10-13 08:48:40,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:40,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642784156] [2020-10-13 08:48:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:40,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:45,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:45,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 476 [2020-10-13 08:48:45,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:45,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-13 08:48:45,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:48:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-10-13 08:48:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:48:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:45,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:45,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:45,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:45,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:45,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:45,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:48:45,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:45,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:45,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:45,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:45,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:45,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:45,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:45,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:45,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:48:45,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:45,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:45,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:45,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:45,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:45,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:48:45,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:45,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:45,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:45,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:48:45,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:45,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-13 08:48:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:45,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:45,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:45,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:48:45,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:45,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-13 08:48:45,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:48:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:48:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:45,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-13 08:48:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:45,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:45,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:45,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:48:45,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:45,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:48:45,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:48:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 218 proven. 111 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 08:48:46,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642784156] [2020-10-13 08:48:46,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:46,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:48:46,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310946840] [2020-10-13 08:48:46,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:48:46,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:46,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:48:46,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:48:46,452 INFO L87 Difference]: Start difference. First operand 3538 states and 4160 transitions. Second operand 10 states. [2020-10-13 08:48:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:48,654 INFO L93 Difference]: Finished difference Result 7274 states and 8565 transitions. [2020-10-13 08:48:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 08:48:48,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 460 [2020-10-13 08:48:48,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:48,669 INFO L225 Difference]: With dead ends: 7274 [2020-10-13 08:48:48,669 INFO L226 Difference]: Without dead ends: 3632 [2020-10-13 08:48:48,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-10-13 08:48:48,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2020-10-13 08:48:48,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3532. [2020-10-13 08:48:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3532 states. [2020-10-13 08:48:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4072 transitions. [2020-10-13 08:48:48,759 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4072 transitions. Word has length 460 [2020-10-13 08:48:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:48,759 INFO L479 AbstractCegarLoop]: Abstraction has 3532 states and 4072 transitions. [2020-10-13 08:48:48,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:48:48,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4072 transitions. [2020-10-13 08:48:48,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2020-10-13 08:48:48,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:48,776 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:48,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:48:48,776 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:48,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:48,777 INFO L82 PathProgramCache]: Analyzing trace with hash 2053049215, now seen corresponding path program 1 times [2020-10-13 08:48:48,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:48,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023256362] [2020-10-13 08:48:48,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:48,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:48,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:49,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:50,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:53,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:53,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 556 [2020-10-13 08:48:53,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:53,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-13 08:48:53,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:48:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:48:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 08:48:53,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:53,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:53,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:53,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:53,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:53,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:53,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:53,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:53,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:48:53,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:53,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:53,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:53,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:53,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 08:48:53,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-13 08:48:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:54,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-13 08:48:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:54,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:54,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:54,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:48:54,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:48:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:54,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2020-10-13 08:48:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:54,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:54,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:54,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:48:54,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:54,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:54,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:54,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:54,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:48:54,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:54,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:54,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2020-10-13 08:48:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:54,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:54,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:54,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:48:54,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:54,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:48:54,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:48:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:54,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 28 proven. 298 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-10-13 08:48:54,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023256362] [2020-10-13 08:48:54,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:54,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:54,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103933679] [2020-10-13 08:48:54,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:54,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:54,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:54,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:54,459 INFO L87 Difference]: Start difference. First operand 3532 states and 4072 transitions. Second operand 7 states. [2020-10-13 08:48:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:55,717 INFO L93 Difference]: Finished difference Result 7436 states and 8563 transitions. [2020-10-13 08:48:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:48:55,718 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 540 [2020-10-13 08:48:55,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:55,732 INFO L225 Difference]: With dead ends: 7436 [2020-10-13 08:48:55,732 INFO L226 Difference]: Without dead ends: 3910 [2020-10-13 08:48:55,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:48:55,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2020-10-13 08:48:55,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3726. [2020-10-13 08:48:55,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3726 states. [2020-10-13 08:48:55,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 4293 transitions. [2020-10-13 08:48:55,818 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 4293 transitions. Word has length 540 [2020-10-13 08:48:55,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:55,819 INFO L479 AbstractCegarLoop]: Abstraction has 3726 states and 4293 transitions. [2020-10-13 08:48:55,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:55,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 4293 transitions. [2020-10-13 08:48:55,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-10-13 08:48:55,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:55,831 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:55,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:48:55,832 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:55,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:55,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1793745350, now seen corresponding path program 1 times [2020-10-13 08:48:55,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:55,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371434443] [2020-10-13 08:48:55,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:56,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:56,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:57,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 779 [2020-10-13 08:48:59,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:59,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3082 [2020-10-13 08:48:59,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:48:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:48:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-13 08:48:59,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:59,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:59,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:59,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:59,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:59,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:59,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:59,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:59,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:59,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:59,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:48:59,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:59,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:59,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:59,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:59,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 08:48:59,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 08:48:59,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:59,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:59,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-13 08:48:59,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:48:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:48:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:48:59,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:59,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:48:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:59,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:48:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:59,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:48:59,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:48:59,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:48:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 403 proven. 226 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2020-10-13 08:49:00,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371434443] [2020-10-13 08:49:00,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:00,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:00,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831348051] [2020-10-13 08:49:00,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:00,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:00,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:00,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:00,221 INFO L87 Difference]: Start difference. First operand 3726 states and 4293 transitions. Second operand 8 states. [2020-10-13 08:49:02,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:02,263 INFO L93 Difference]: Finished difference Result 7460 states and 8635 transitions. [2020-10-13 08:49:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:49:02,264 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 759 [2020-10-13 08:49:02,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:02,275 INFO L225 Difference]: With dead ends: 7460 [2020-10-13 08:49:02,275 INFO L226 Difference]: Without dead ends: 3924 [2020-10-13 08:49:02,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:49:02,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3924 states. [2020-10-13 08:49:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3924 to 3914. [2020-10-13 08:49:02,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3914 states. [2020-10-13 08:49:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 4490 transitions. [2020-10-13 08:49:02,358 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 4490 transitions. Word has length 759 [2020-10-13 08:49:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:02,359 INFO L479 AbstractCegarLoop]: Abstraction has 3914 states and 4490 transitions. [2020-10-13 08:49:02,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:49:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 4490 transitions. [2020-10-13 08:49:02,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2020-10-13 08:49:02,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:02,372 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:02,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:49:02,372 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:02,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:02,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1720977330, now seen corresponding path program 1 times [2020-10-13 08:49:02,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:02,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282049512] [2020-10-13 08:49:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:02,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:02,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:02,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:02,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:07,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:07,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 863 [2020-10-13 08:49:07,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:49:07,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 08:49:07,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:07,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 08:49:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-13 08:49:07,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:07,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:07,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:07,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:07,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:07,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:07,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:07,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:07,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:07,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:07,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:07,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:07,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:07,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:49:07,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:49:07,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:07,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:07,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:07,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:07,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:49:07,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:07,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 08:49:07,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:07,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:07,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:07,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 08:49:07,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:07,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-13 08:49:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:07,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:07,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:07,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:07,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:07,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:49:07,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-13 08:49:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:07,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:08,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2020-10-13 08:49:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:08,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:08,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:08,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:08,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:49:08,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:49:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:08,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-13 08:49:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:08,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:08,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:49:08,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:08,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:49:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:08,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 686 [2020-10-13 08:49:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:08,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:08,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:08,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:49:08,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:49:08,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:49:08,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:08,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 165 proven. 468 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2020-10-13 08:49:08,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282049512] [2020-10-13 08:49:08,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:08,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:49:08,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935562097] [2020-10-13 08:49:08,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:49:08,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:08,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:49:08,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:49:08,663 INFO L87 Difference]: Start difference. First operand 3914 states and 4490 transitions. Second operand 7 states. [2020-10-13 08:49:09,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:09,974 INFO L93 Difference]: Finished difference Result 7824 states and 8986 transitions. [2020-10-13 08:49:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:49:09,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 843 [2020-10-13 08:49:09,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:09,988 INFO L225 Difference]: With dead ends: 7824 [2020-10-13 08:49:09,988 INFO L226 Difference]: Without dead ends: 4100 [2020-10-13 08:49:09,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:49:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2020-10-13 08:49:10,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 3914. [2020-10-13 08:49:10,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3914 states. [2020-10-13 08:49:10,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 4488 transitions. [2020-10-13 08:49:10,074 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 4488 transitions. Word has length 843 [2020-10-13 08:49:10,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:10,075 INFO L479 AbstractCegarLoop]: Abstraction has 3914 states and 4488 transitions. [2020-10-13 08:49:10,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:49:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 4488 transitions. [2020-10-13 08:49:10,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2020-10-13 08:49:10,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:10,090 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:10,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:49:10,091 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:10,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1315866006, now seen corresponding path program 1 times [2020-10-13 08:49:10,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:10,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701156690] [2020-10-13 08:49:10,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:10,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:13,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 940 [2020-10-13 08:49:13,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:13,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2794 [2020-10-13 08:49:13,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:49:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:49:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:49:13,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:13,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:13,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:13,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:13,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:13,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 08:49:13,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:13,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:13,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:13,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:13,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:13,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:13,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:49:13,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:13,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:13,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:13,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:13,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:13,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:13,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:13,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:13,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:13,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:13,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:13,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:13,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:13,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:13,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:49:13,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:13,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:13,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:13,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:13,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:13,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:13,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:13,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:49:13,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:13,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:49:13,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:13,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:13,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:13,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:13,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:13,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:49:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:13,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:13,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:13,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:13,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-13 08:49:13,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:49:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:49:13,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:14,182 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2020-10-13 08:49:14,372 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-13 08:49:14,576 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-10-13 08:49:14,795 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-10-13 08:49:15,033 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-13 08:49:15,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-13 08:49:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:15,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:15,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:15,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:15,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2020-10-13 08:49:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:15,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:15,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:15,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:49:15,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:49:15,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:49:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:15,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2320 backedges. 579 proven. 226 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2020-10-13 08:49:17,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701156690] [2020-10-13 08:49:17,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:17,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:49:17,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165446915] [2020-10-13 08:49:17,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:49:17,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:17,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:49:17,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:49:17,801 INFO L87 Difference]: Start difference. First operand 3914 states and 4488 transitions. Second operand 13 states. [2020-10-13 08:49:18,544 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-10-13 08:49:19,308 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-13 08:49:19,545 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-13 08:49:19,949 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-10-13 08:49:20,369 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 08:49:20,766 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2020-10-13 08:49:21,796 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-13 08:49:22,541 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-10-13 08:49:22,794 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-10-13 08:49:23,077 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2020-10-13 08:49:23,477 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2020-10-13 08:49:23,872 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2020-10-13 08:49:24,229 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 84 [2020-10-13 08:49:24,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:24,624 INFO L93 Difference]: Finished difference Result 7824 states and 8987 transitions. [2020-10-13 08:49:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:49:24,627 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 918 [2020-10-13 08:49:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:24,637 INFO L225 Difference]: With dead ends: 7824 [2020-10-13 08:49:24,637 INFO L226 Difference]: Without dead ends: 4089 [2020-10-13 08:49:24,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:49:24,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4089 states. [2020-10-13 08:49:24,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4089 to 4087. [2020-10-13 08:49:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4087 states. [2020-10-13 08:49:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 4664 transitions. [2020-10-13 08:49:24,728 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 4664 transitions. Word has length 918 [2020-10-13 08:49:24,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:24,729 INFO L479 AbstractCegarLoop]: Abstraction has 4087 states and 4664 transitions. [2020-10-13 08:49:24,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:49:24,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 4664 transitions. [2020-10-13 08:49:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 982 [2020-10-13 08:49:24,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:24,750 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:24,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:49:24,751 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:24,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:24,752 INFO L82 PathProgramCache]: Analyzing trace with hash 109225289, now seen corresponding path program 1 times [2020-10-13 08:49:24,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:24,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215380404] [2020-10-13 08:49:24,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:26,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:29,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:29,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1003 [2020-10-13 08:49:29,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:49:29,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-13 08:49:29,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:49:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 574 [2020-10-13 08:49:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 08:49:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:30,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:30,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:30,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:30,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:30,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:30,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:30,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:30,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:30,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:30,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:30,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:30,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:30,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:49:30,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:30,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:49:30,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:30,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:30,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:30,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-13 08:49:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:30,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:30,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 08:49:30,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:30,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:30,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 08:49:30,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:30,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-13 08:49:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:30,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:30,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:30,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-10-13 08:49:30,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:49:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:49:30,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:31,325 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-10-13 08:49:31,519 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2020-10-13 08:49:31,693 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-13 08:49:31,880 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-10-13 08:49:32,079 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-13 08:49:32,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2020-10-13 08:49:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:32,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:32,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:49:32,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:32,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:49:32,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:49:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:32,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:32,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 824 [2020-10-13 08:49:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:32,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:32,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:49:32,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:32,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:49:32,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:49:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:32,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2462 backedges. 642 proven. 226 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2020-10-13 08:49:34,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215380404] [2020-10-13 08:49:34,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:34,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:49:34,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413984775] [2020-10-13 08:49:34,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:49:34,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:34,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:49:34,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:49:34,608 INFO L87 Difference]: Start difference. First operand 4087 states and 4664 transitions. Second operand 13 states. [2020-10-13 08:49:35,131 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-10-13 08:49:35,325 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-13 08:49:35,560 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-13 08:49:35,741 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-13 08:49:36,024 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-13 08:49:36,291 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-13 08:49:36,603 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-10-13 08:49:37,484 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-13 08:49:37,707 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-10-13 08:49:37,974 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-13 08:49:38,191 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-13 08:49:38,595 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-13 08:49:38,923 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2020-10-13 08:49:39,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:39,351 INFO L93 Difference]: Finished difference Result 7988 states and 9149 transitions. [2020-10-13 08:49:39,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:49:39,352 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 981 [2020-10-13 08:49:39,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:39,365 INFO L225 Difference]: With dead ends: 7988 [2020-10-13 08:49:39,365 INFO L226 Difference]: Without dead ends: 3983 [2020-10-13 08:49:39,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:49:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2020-10-13 08:49:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3981. [2020-10-13 08:49:39,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3981 states. [2020-10-13 08:49:39,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 4539 transitions. [2020-10-13 08:49:39,445 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 4539 transitions. Word has length 981 [2020-10-13 08:49:39,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:39,446 INFO L479 AbstractCegarLoop]: Abstraction has 3981 states and 4539 transitions. [2020-10-13 08:49:39,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:49:39,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 4539 transitions. [2020-10-13 08:49:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1058 [2020-10-13 08:49:39,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:39,463 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:39,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:49:39,464 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:39,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:39,464 INFO L82 PathProgramCache]: Analyzing trace with hash -607812526, now seen corresponding path program 1 times [2020-10-13 08:49:39,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:39,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396007371] [2020-10-13 08:49:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:39,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:39,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:44,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:44,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1081 [2020-10-13 08:49:44,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:49:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 08:49:44,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:49:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-13 08:49:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:49:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:44,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:44,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:44,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:44,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:44,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:44,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:44,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:44,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:44,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:44,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:44,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:44,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:44,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:44,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:44,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:44,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:44,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:49:44,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:44,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:44,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:44,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:44,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:44,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:44,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:44,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:49:44,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 08:49:44,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:44,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:44,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:44,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:45,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:49:45,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:45,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-13 08:49:45,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-13 08:49:45,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:45,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-13 08:49:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:45,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:45,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:45,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:45,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 08:49:45,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-13 08:49:45,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:45,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:45,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-13 08:49:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:45,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:45,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:49:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:49:45,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 08:49:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:45,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:45,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2020-10-13 08:49:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:45,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:45,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:45,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:49:45,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:49:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 821 [2020-10-13 08:49:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:45,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:45,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:49:45,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:45,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:45,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:49:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:45,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:45,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2020-10-13 08:49:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:45,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:45,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:49:45,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:49:45,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:49:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:45,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3001 backedges. 314 proven. 617 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2020-10-13 08:49:46,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396007371] [2020-10-13 08:49:46,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:46,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:46,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786630552] [2020-10-13 08:49:46,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:46,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:46,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:46,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:46,553 INFO L87 Difference]: Start difference. First operand 3981 states and 4539 transitions. Second operand 8 states. [2020-10-13 08:49:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:48,303 INFO L93 Difference]: Finished difference Result 7776 states and 8897 transitions. [2020-10-13 08:49:48,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:49:48,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1057 [2020-10-13 08:49:48,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:48,314 INFO L225 Difference]: With dead ends: 7776 [2020-10-13 08:49:48,314 INFO L226 Difference]: Without dead ends: 3985 [2020-10-13 08:49:48,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:49:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3985 states. [2020-10-13 08:49:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3985 to 3981. [2020-10-13 08:49:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3981 states. [2020-10-13 08:49:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 4533 transitions. [2020-10-13 08:49:48,394 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 4533 transitions. Word has length 1057 [2020-10-13 08:49:48,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:48,395 INFO L479 AbstractCegarLoop]: Abstraction has 3981 states and 4533 transitions. [2020-10-13 08:49:48,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:49:48,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 4533 transitions. [2020-10-13 08:49:48,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2020-10-13 08:49:48,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:48,414 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:48,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:49:48,414 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:48,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:48,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1128460657, now seen corresponding path program 1 times [2020-10-13 08:49:48,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:48,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949076822] [2020-10-13 08:49:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:50,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1119 [2020-10-13 08:49:53,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:53,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 08:49:53,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:53,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-13 08:49:53,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-13 08:49:53,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:53,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:53,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:53,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:53,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:53,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:53,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:53,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:53,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:53,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:53,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:53,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:53,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:53,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:53,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:49:53,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:53,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:53,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:53,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:53,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:53,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:53,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:53,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:53,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:53,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:53,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:49:53,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:53,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:49:53,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:53,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:53,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:49:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:53,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:53,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:49:53,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:53,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:53,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:49:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:54,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:49:54,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:49:54,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:54,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:54,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:49:54,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:54,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:49:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:54,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:54,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-13 08:49:54,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:49:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:54,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:49:54,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:54,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:49:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:54,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:49:54,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:49:54,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:49:54,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:54,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-13 08:49:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:54,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:49:54,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:49:54,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:49:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:54,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3525 backedges. 1307 proven. 228 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2020-10-13 08:49:55,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949076822] [2020-10-13 08:49:55,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:55,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:49:55,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752883982] [2020-10-13 08:49:55,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:49:55,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:55,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:49:55,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:49:55,178 INFO L87 Difference]: Start difference. First operand 3981 states and 4533 transitions. Second operand 10 states. [2020-10-13 08:49:57,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:57,979 INFO L93 Difference]: Finished difference Result 9804 states and 11363 transitions. [2020-10-13 08:49:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 08:49:57,980 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1093 [2020-10-13 08:49:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:57,994 INFO L225 Difference]: With dead ends: 9804 [2020-10-13 08:49:57,995 INFO L226 Difference]: Without dead ends: 6013 [2020-10-13 08:49:58,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-13 08:49:58,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2020-10-13 08:49:58,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5643. [2020-10-13 08:49:58,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5643 states. [2020-10-13 08:49:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5643 states to 5643 states and 6578 transitions. [2020-10-13 08:49:58,112 INFO L78 Accepts]: Start accepts. Automaton has 5643 states and 6578 transitions. Word has length 1093 [2020-10-13 08:49:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:58,113 INFO L479 AbstractCegarLoop]: Abstraction has 5643 states and 6578 transitions. [2020-10-13 08:49:58,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:49:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5643 states and 6578 transitions. [2020-10-13 08:49:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1245 [2020-10-13 08:49:58,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:58,146 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:58,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:49:58,147 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:58,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:58,148 INFO L82 PathProgramCache]: Analyzing trace with hash -915039765, now seen corresponding path program 1 times [2020-10-13 08:49:58,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:58,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280108137] [2020-10-13 08:49:58,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:58,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:58,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:01,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:01,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1272 [2020-10-13 08:50:01,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3390 [2020-10-13 08:50:01,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-13 08:50:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:50:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:01,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:01,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:01,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:01,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:01,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:01,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:01,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:01,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:01,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:01,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:01,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:01,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:01,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:01,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:01,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:01,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:01,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:01,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:01,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:01,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:01,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:01,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:01,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:01,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:01,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:01,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:02,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:02,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:02,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:02,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:50:02,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:02,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:02,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:02,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:02,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:02,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:02,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:02,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:02,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:02,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:02,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:02,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:02,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:02,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:02,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:02,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:02,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:50:02,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:02,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:02,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:02,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:02,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:02,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:02,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:02,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:02,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:02,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:02,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:02,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:02,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:02,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:02,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:50:02,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:02,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:02,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:02,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:02,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:02,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:02,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:02,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:02,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:50:02,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:50:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:02,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:02,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:02,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:02,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:50:02,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:02,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 08:50:02,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:50:02,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:02,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-13 08:50:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:02,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:02,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:02,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:02,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:02,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:50:02,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:50:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:02,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:03,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4686 backedges. 937 proven. 111 refuted. 0 times theorem prover too weak. 3638 trivial. 0 not checked. [2020-10-13 08:50:03,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280108137] [2020-10-13 08:50:03,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:03,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:03,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62874322] [2020-10-13 08:50:03,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:03,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:03,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:03,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:03,353 INFO L87 Difference]: Start difference. First operand 5643 states and 6578 transitions. Second operand 7 states. [2020-10-13 08:50:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:05,147 INFO L93 Difference]: Finished difference Result 11466 states and 13397 transitions. [2020-10-13 08:50:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:50:05,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1244 [2020-10-13 08:50:05,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:05,165 INFO L225 Difference]: With dead ends: 11466 [2020-10-13 08:50:05,165 INFO L226 Difference]: Without dead ends: 6013 [2020-10-13 08:50:05,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:50:05,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2020-10-13 08:50:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5827. [2020-10-13 08:50:05,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5827 states. [2020-10-13 08:50:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5827 states to 5827 states and 6774 transitions. [2020-10-13 08:50:05,293 INFO L78 Accepts]: Start accepts. Automaton has 5827 states and 6774 transitions. Word has length 1244 [2020-10-13 08:50:05,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:05,295 INFO L479 AbstractCegarLoop]: Abstraction has 5827 states and 6774 transitions. [2020-10-13 08:50:05,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5827 states and 6774 transitions. [2020-10-13 08:50:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1352 [2020-10-13 08:50:05,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:05,333 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:05,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:50:05,333 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:05,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:05,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1452842551, now seen corresponding path program 1 times [2020-10-13 08:50:05,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:05,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893247061] [2020-10-13 08:50:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:06,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1381 [2020-10-13 08:50:07,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2144 [2020-10-13 08:50:07,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-13 08:50:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 08:50:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:07,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:07,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:07,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:07,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:07,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:07,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:50:07,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:07,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:07,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:07,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:50:07,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:07,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:07,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:07,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:07,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:07,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:07,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:07,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:07,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:07,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:07,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:07,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:07,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:07,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:07,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:50:07,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:07,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:08,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:08,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:08,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:08,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:08,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:50:08,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:08,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:08,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:50:08,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:08,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:08,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:08,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:08,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:50:08,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 08:50:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:50:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:50:08,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:50:08,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:50:08,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:08,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1194 [2020-10-13 08:50:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:08,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:08,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:08,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:50:08,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:08,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:50:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5575 backedges. 834 proven. 78 refuted. 0 times theorem prover too weak. 4663 trivial. 0 not checked. [2020-10-13 08:50:09,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893247061] [2020-10-13 08:50:09,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:09,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:09,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179518470] [2020-10-13 08:50:09,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:09,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:09,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:09,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:09,143 INFO L87 Difference]: Start difference. First operand 5827 states and 6774 transitions. Second operand 7 states. [2020-10-13 08:50:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:10,616 INFO L93 Difference]: Finished difference Result 12752 states and 14908 transitions. [2020-10-13 08:50:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:50:10,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1351 [2020-10-13 08:50:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:10,630 INFO L225 Difference]: With dead ends: 12752 [2020-10-13 08:50:10,630 INFO L226 Difference]: Without dead ends: 7115 [2020-10-13 08:50:10,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:50:10,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7115 states. [2020-10-13 08:50:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7115 to 7109. [2020-10-13 08:50:10,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7109 states. [2020-10-13 08:50:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7109 states to 7109 states and 8184 transitions. [2020-10-13 08:50:10,760 INFO L78 Accepts]: Start accepts. Automaton has 7109 states and 8184 transitions. Word has length 1351 [2020-10-13 08:50:10,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:10,761 INFO L479 AbstractCegarLoop]: Abstraction has 7109 states and 8184 transitions. [2020-10-13 08:50:10,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 7109 states and 8184 transitions. [2020-10-13 08:50:10,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1566 [2020-10-13 08:50:10,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:10,793 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:10,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:50:10,793 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:10,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:10,794 INFO L82 PathProgramCache]: Analyzing trace with hash 452065964, now seen corresponding path program 1 times [2020-10-13 08:50:10,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:10,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777627452] [2020-10-13 08:50:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:11,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:11,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1597 [2020-10-13 08:50:13,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:13,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2860 [2020-10-13 08:50:13,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-13 08:50:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 08:50:13,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:14,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:14,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:14,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:50:14,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:14,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:50:14,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:14,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:14,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:14,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:14,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:14,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:50:14,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:14,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:14,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:14,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:50:14,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:14,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:50:14,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:14,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:50:14,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:50:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:14,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:50:14,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:14,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:50:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 08:50:14,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:14,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:50:14,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:50:14,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-13 08:50:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:14,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:14,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:14,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:14,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 08:50:14,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-13 08:50:14,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 7206 backedges. 1416 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-13 08:50:16,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777627452] [2020-10-13 08:50:16,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:16,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:50:16,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251982447] [2020-10-13 08:50:16,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:50:16,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:16,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:50:16,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:50:16,630 INFO L87 Difference]: Start difference. First operand 7109 states and 8184 transitions. Second operand 6 states. [2020-10-13 08:50:17,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:17,784 INFO L93 Difference]: Finished difference Result 14089 states and 16293 transitions. [2020-10-13 08:50:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:50:17,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1565 [2020-10-13 08:50:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:17,798 INFO L225 Difference]: With dead ends: 14089 [2020-10-13 08:50:17,798 INFO L226 Difference]: Without dead ends: 7138 [2020-10-13 08:50:17,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:50:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7138 states. [2020-10-13 08:50:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7138 to 7109. [2020-10-13 08:50:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7109 states. [2020-10-13 08:50:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7109 states to 7109 states and 8169 transitions. [2020-10-13 08:50:17,928 INFO L78 Accepts]: Start accepts. Automaton has 7109 states and 8169 transitions. Word has length 1565 [2020-10-13 08:50:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:17,929 INFO L479 AbstractCegarLoop]: Abstraction has 7109 states and 8169 transitions. [2020-10-13 08:50:17,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:50:17,930 INFO L276 IsEmpty]: Start isEmpty. Operand 7109 states and 8169 transitions. [2020-10-13 08:50:17,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1567 [2020-10-13 08:50:17,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:17,957 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:17,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:50:17,957 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:17,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:17,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1447176689, now seen corresponding path program 1 times [2020-10-13 08:50:17,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:17,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130902283] [2020-10-13 08:50:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:18,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:18,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1598 [2020-10-13 08:50:21,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:21,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3614 [2020-10-13 08:50:21,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1317 [2020-10-13 08:50:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:50:21,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:21,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:21,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:21,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:21,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:21,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:21,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:22,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:50:22,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:22,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:22,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:22,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:22,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:22,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:22,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:22,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:22,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:22,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:50:22,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:22,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:22,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:22,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:22,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:22,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:22,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:50:22,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:22,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:22,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:22,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:22,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:50:22,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:22,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:22,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:50:22,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:22,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:22,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:22,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:50:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:22,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 08:50:22,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:22,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:22,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-13 08:50:22,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:50:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:50:22,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 08:50:22,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:50:22,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1409 [2020-10-13 08:50:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:22,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:22,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:22,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:50:22,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:22,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:50:22,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:22,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:23,854 INFO L134 CoverageAnalysis]: Checked inductivity of 7213 backedges. 1187 proven. 111 refuted. 0 times theorem prover too weak. 5915 trivial. 0 not checked. [2020-10-13 08:50:23,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130902283] [2020-10-13 08:50:23,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:23,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:23,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837928782] [2020-10-13 08:50:23,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:23,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:23,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:23,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:23,856 INFO L87 Difference]: Start difference. First operand 7109 states and 8169 transitions. Second operand 7 states. [2020-10-13 08:50:25,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:25,385 INFO L93 Difference]: Finished difference Result 14582 states and 16850 transitions. [2020-10-13 08:50:25,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:50:25,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1566 [2020-10-13 08:50:25,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:25,398 INFO L225 Difference]: With dead ends: 14582 [2020-10-13 08:50:25,398 INFO L226 Difference]: Without dead ends: 7663 [2020-10-13 08:50:25,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:50:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2020-10-13 08:50:25,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 7473. [2020-10-13 08:50:25,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7473 states. [2020-10-13 08:50:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7473 states to 7473 states and 8513 transitions. [2020-10-13 08:50:25,508 INFO L78 Accepts]: Start accepts. Automaton has 7473 states and 8513 transitions. Word has length 1566 [2020-10-13 08:50:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:25,509 INFO L479 AbstractCegarLoop]: Abstraction has 7473 states and 8513 transitions. [2020-10-13 08:50:25,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:25,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7473 states and 8513 transitions. [2020-10-13 08:50:25,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1647 [2020-10-13 08:50:25,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:25,529 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:25,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:50:25,530 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:25,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:25,530 INFO L82 PathProgramCache]: Analyzing trace with hash -661704900, now seen corresponding path program 1 times [2020-10-13 08:50:25,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:25,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657695855] [2020-10-13 08:50:25,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:25,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:26,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1680 [2020-10-13 08:50:28,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:28,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2637 [2020-10-13 08:50:28,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:28,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-13 08:50:28,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 08:50:28,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:28,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:28,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:28,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:28,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:50:28,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:28,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:28,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:28,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:28,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:28,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:28,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:50:28,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:28,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:28,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:28,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:28,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:50:28,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:28,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:28,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:28,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:28,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:28,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:50:28,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:28,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:28,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:28,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:28,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:28,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:28,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:28,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:50:28,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:28,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:28,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:28,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:28,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:28,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:28,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:28,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:28,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:28,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:50:28,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:29,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:29,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:29,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:29,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:29,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:50:29,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:29,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:29,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:29,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:29,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:29,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:29,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:29,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:29,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:29,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:50:29,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:29,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:29,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:29,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:29,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:29,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:50:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:29,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:29,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:29,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:29,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:50:29,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:29,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:50:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:29,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:29,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:29,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:50:29,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:29,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:50:29,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 08:50:29,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:29,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:50:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:29,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:29,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:29,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:50:29,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:50:29,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:50:29,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:29,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1489 [2020-10-13 08:50:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:29,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:29,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:29,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:29,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:29,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 08:50:29,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:50:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:29,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8172 backedges. 1018 proven. 78 refuted. 0 times theorem prover too weak. 7076 trivial. 0 not checked. [2020-10-13 08:50:30,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657695855] [2020-10-13 08:50:30,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:30,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:30,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082574417] [2020-10-13 08:50:30,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:30,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:30,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:30,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:30,608 INFO L87 Difference]: Start difference. First operand 7473 states and 8513 transitions. Second operand 7 states. [2020-10-13 08:50:32,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:32,143 INFO L93 Difference]: Finished difference Result 15866 states and 18235 transitions. [2020-10-13 08:50:32,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:50:32,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1646 [2020-10-13 08:50:32,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:32,164 INFO L225 Difference]: With dead ends: 15866 [2020-10-13 08:50:32,165 INFO L226 Difference]: Without dead ends: 8583 [2020-10-13 08:50:32,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:50:32,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8583 states. [2020-10-13 08:50:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8583 to 8575. [2020-10-13 08:50:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8575 states. [2020-10-13 08:50:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8575 states to 8575 states and 9834 transitions. [2020-10-13 08:50:32,325 INFO L78 Accepts]: Start accepts. Automaton has 8575 states and 9834 transitions. Word has length 1646 [2020-10-13 08:50:32,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:32,327 INFO L479 AbstractCegarLoop]: Abstraction has 8575 states and 9834 transitions. [2020-10-13 08:50:32,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:32,327 INFO L276 IsEmpty]: Start isEmpty. Operand 8575 states and 9834 transitions. [2020-10-13 08:50:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1745 [2020-10-13 08:50:32,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:32,356 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:32,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:50:32,357 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:32,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:32,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1967235546, now seen corresponding path program 1 times [2020-10-13 08:50:32,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:32,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460668809] [2020-10-13 08:50:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:32,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:34,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1778 [2020-10-13 08:50:34,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:34,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1961 [2020-10-13 08:50:34,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:34,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:34,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-13 08:50:34,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 08:50:34,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:34,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:34,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:34,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:34,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:34,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:34,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:34,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:34,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:50:34,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:34,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:34,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:34,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:34,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:34,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:34,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:34,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:34,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:34,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:34,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:34,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:34,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:34,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:34,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:34,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:34,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:34,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:34,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:34,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:34,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:34,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:34,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:50:34,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:35,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:35,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:35,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:35,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:35,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:35,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:35,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:35,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:35,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:35,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:35,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:35,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:50:35,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:35,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:35,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:35,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:35,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:50:35,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:35,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:35,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:35,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:35,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:35,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:50:35,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:35,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:35,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:50:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:35,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:35,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:35,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:35,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:50:35,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:35,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:35,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:50:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:35,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:35,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 08:50:35,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 08:50:35,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 08:50:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:35,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-13 08:50:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:35,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:35,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:50:35,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:35,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-13 08:50:35,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:50:35,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:35,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-13 08:50:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:35,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:35,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:35,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:35,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:35,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:50:35,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:50:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:35,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:37,907 INFO L134 CoverageAnalysis]: Checked inductivity of 8767 backedges. 1312 proven. 111 refuted. 0 times theorem prover too weak. 7344 trivial. 0 not checked. [2020-10-13 08:50:37,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460668809] [2020-10-13 08:50:37,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:37,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:37,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743589976] [2020-10-13 08:50:37,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:37,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:37,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:37,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:37,910 INFO L87 Difference]: Start difference. First operand 8575 states and 9834 transitions. Second operand 7 states. [2020-10-13 08:50:39,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:39,461 INFO L93 Difference]: Finished difference Result 17013 states and 19555 transitions. [2020-10-13 08:50:39,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:50:39,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1744 [2020-10-13 08:50:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:39,485 INFO L225 Difference]: With dead ends: 17013 [2020-10-13 08:50:39,486 INFO L226 Difference]: Without dead ends: 8599 [2020-10-13 08:50:39,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:50:39,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8599 states. [2020-10-13 08:50:39,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8599 to 8573. [2020-10-13 08:50:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-10-13 08:50:39,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 9801 transitions. [2020-10-13 08:50:39,665 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 9801 transitions. Word has length 1744 [2020-10-13 08:50:39,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:39,667 INFO L479 AbstractCegarLoop]: Abstraction has 8573 states and 9801 transitions. [2020-10-13 08:50:39,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:39,667 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 9801 transitions. [2020-10-13 08:50:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1784 [2020-10-13 08:50:39,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:39,704 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:39,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:50:39,707 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:39,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:39,708 INFO L82 PathProgramCache]: Analyzing trace with hash -324039070, now seen corresponding path program 1 times [2020-10-13 08:50:39,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:39,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945370209] [2020-10-13 08:50:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:40,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:41,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:42,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1819 [2020-10-13 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4145 [2020-10-13 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1538 [2020-10-13 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:44,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:50:44,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:44,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:50:44,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:44,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:44,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:44,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:44,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:44,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:44,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:44,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:50:44,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:44,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:44,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:44,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:50:44,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:44,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:44,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:44,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:50:44,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:50:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:44,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:50:44,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:50:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:50:44,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:50:44,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:50:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:50:44,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:50:44,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 08:50:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1514 [2020-10-13 08:50:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:45,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:45,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:50:45,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-13 08:50:45,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:50:45,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:45,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1626 [2020-10-13 08:50:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:45,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:45,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:45,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:45,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:45,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:50:45,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:50:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:45,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:46,528 INFO L134 CoverageAnalysis]: Checked inductivity of 9807 backedges. 1429 proven. 111 refuted. 0 times theorem prover too weak. 8267 trivial. 0 not checked. [2020-10-13 08:50:46,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945370209] [2020-10-13 08:50:46,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:46,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:46,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159575609] [2020-10-13 08:50:46,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:46,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:46,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:46,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:46,531 INFO L87 Difference]: Start difference. First operand 8573 states and 9801 transitions. Second operand 7 states. [2020-10-13 08:50:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:48,399 INFO L93 Difference]: Finished difference Result 17008 states and 19477 transitions. [2020-10-13 08:50:48,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:50:48,400 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1783 [2020-10-13 08:50:48,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:48,416 INFO L225 Difference]: With dead ends: 17008 [2020-10-13 08:50:48,417 INFO L226 Difference]: Without dead ends: 8573 [2020-10-13 08:50:48,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:50:48,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8573 states. [2020-10-13 08:50:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8573 to 8387. [2020-10-13 08:50:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8387 states. [2020-10-13 08:50:48,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8387 states to 8387 states and 9537 transitions. [2020-10-13 08:50:48,567 INFO L78 Accepts]: Start accepts. Automaton has 8387 states and 9537 transitions. Word has length 1783 [2020-10-13 08:50:48,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:48,568 INFO L479 AbstractCegarLoop]: Abstraction has 8387 states and 9537 transitions. [2020-10-13 08:50:48,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:48,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8387 states and 9537 transitions. [2020-10-13 08:50:48,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1807 [2020-10-13 08:50:48,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:48,602 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:48,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:50:48,602 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:48,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:48,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1443213677, now seen corresponding path program 1 times [2020-10-13 08:50:48,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:48,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902665429] [2020-10-13 08:50:48,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:49,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:50,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:50,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1842 [2020-10-13 08:50:50,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1754 [2020-10-13 08:50:50,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-13 08:50:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:50:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:50,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:50,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:50,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:50,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:50,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:50,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:50,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:50,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:50,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:50,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:50,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:50,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:50,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:50:50,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:50,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:50,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:50,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:50,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:50,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:50,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:50:50,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:50,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:50,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:50,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:50,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:50,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:50,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:50,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:50,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:50,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:50,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:50,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:50,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:50,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:50,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:50,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:50,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:50,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:50,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:50,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:50,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:50,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:50,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:50:50,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:50,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:50,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:50,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:50,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:50,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:50,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:50,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:50,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:50,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:50,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:50,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:51,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:50:51,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:51,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:51,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:51,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:50:51,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:50:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:51,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:50:51,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:50:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:50:51,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:50:51,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:50:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:50:51,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:50:51,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:50:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-13 08:50:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:50:51,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 08:50:51,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:50:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1649 [2020-10-13 08:50:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:51,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:50:51,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:50:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 9977 backedges. 1437 proven. 111 refuted. 0 times theorem prover too weak. 8429 trivial. 0 not checked. [2020-10-13 08:50:53,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902665429] [2020-10-13 08:50:53,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:53,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:53,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990625349] [2020-10-13 08:50:53,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:53,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:53,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:53,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:53,047 INFO L87 Difference]: Start difference. First operand 8387 states and 9537 transitions. Second operand 7 states. [2020-10-13 08:50:54,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:54,696 INFO L93 Difference]: Finished difference Result 16584 states and 18883 transitions. [2020-10-13 08:50:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:50:54,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1806 [2020-10-13 08:50:54,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:54,710 INFO L225 Difference]: With dead ends: 16584 [2020-10-13 08:50:54,710 INFO L226 Difference]: Without dead ends: 8387 [2020-10-13 08:50:54,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:50:54,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8387 states. [2020-10-13 08:50:54,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8387 to 8387. [2020-10-13 08:50:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8387 states. [2020-10-13 08:50:54,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8387 states to 8387 states and 9525 transitions. [2020-10-13 08:50:54,843 INFO L78 Accepts]: Start accepts. Automaton has 8387 states and 9525 transitions. Word has length 1806 [2020-10-13 08:50:54,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:54,844 INFO L479 AbstractCegarLoop]: Abstraction has 8387 states and 9525 transitions. [2020-10-13 08:50:54,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:54,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8387 states and 9525 transitions. [2020-10-13 08:50:54,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1837 [2020-10-13 08:50:54,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:54,872 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:54,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:50:54,872 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:54,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:54,873 INFO L82 PathProgramCache]: Analyzing trace with hash 763079625, now seen corresponding path program 1 times [2020-10-13 08:50:54,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:54,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777962017] [2020-10-13 08:50:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:55,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:56,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:57,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:57,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1872 [2020-10-13 08:50:57,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2555 [2020-10-13 08:50:57,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1705 [2020-10-13 08:50:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 08:50:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:57,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:57,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:57,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:57,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:57,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:57,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:57,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:57,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:57,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:57,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:57,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:57,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:57,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:57,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:57,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:57,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:57,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:57,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:57,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:57,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:57,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:57,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:57,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:57,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:57,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:50:57,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:57,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:57,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:57,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:57,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:57,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:57,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:57,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:50:57,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:57,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:57,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:57,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:57,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:57,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:57,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:57,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:57,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:57,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:57,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:57,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:57,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:57,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:58,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:50:58,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:58,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:50:58,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:58,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:50:58,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:50:58,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:58,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:50:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:58,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:50:58,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:50:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:50:58,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:50:58,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:50:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:50:58,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:50:58,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:50:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:50:58,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:50:58,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:58,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-13 08:50:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:50:58,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:58,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 08:50:58,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:58,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:58,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 08:50:58,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:58,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1679 [2020-10-13 08:50:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:58,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:58,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:58,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:58,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:58,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-13 08:50:58,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:58,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:58,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:58,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-13 08:50:58,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 10152 backedges. 1705 proven. 2 refuted. 0 times theorem prover too weak. 8445 trivial. 0 not checked. [2020-10-13 08:51:01,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777962017] [2020-10-13 08:51:01,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:01,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:51:01,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800771266] [2020-10-13 08:51:01,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:51:01,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:01,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:51:01,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:51:01,042 INFO L87 Difference]: Start difference. First operand 8387 states and 9525 transitions. Second operand 6 states. [2020-10-13 08:51:02,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:02,134 INFO L93 Difference]: Finished difference Result 16437 states and 18669 transitions. [2020-10-13 08:51:02,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:51:02,135 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1836 [2020-10-13 08:51:02,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:02,148 INFO L225 Difference]: With dead ends: 16437 [2020-10-13 08:51:02,149 INFO L226 Difference]: Without dead ends: 8220 [2020-10-13 08:51:02,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:51:02,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8220 states. [2020-10-13 08:51:02,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8220 to 8201. [2020-10-13 08:51:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8201 states. [2020-10-13 08:51:02,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8201 states to 8201 states and 9225 transitions. [2020-10-13 08:51:02,289 INFO L78 Accepts]: Start accepts. Automaton has 8201 states and 9225 transitions. Word has length 1836 [2020-10-13 08:51:02,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:02,290 INFO L479 AbstractCegarLoop]: Abstraction has 8201 states and 9225 transitions. [2020-10-13 08:51:02,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:51:02,290 INFO L276 IsEmpty]: Start isEmpty. Operand 8201 states and 9225 transitions. [2020-10-13 08:51:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1855 [2020-10-13 08:51:02,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:02,313 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:51:02,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:51:02,313 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:02,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:02,314 INFO L82 PathProgramCache]: Analyzing trace with hash 40986829, now seen corresponding path program 1 times [2020-10-13 08:51:02,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:02,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517327513] [2020-10-13 08:51:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:02,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:03,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:03,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1890 [2020-10-13 08:51:07,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:51:07,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 08:51:07,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1609 [2020-10-13 08:51:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 08:51:07,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:07,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:07,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:07,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:51:07,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:07,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:07,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:51:07,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:07,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:51:07,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:07,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:07,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:07,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:07,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:51:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:51:07,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:51:07,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:07,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:51:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:51:07,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:07,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:51:07,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:07,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:07,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:07,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:07,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:51:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:51:07,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:07,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:51:07,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:07,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:07,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:07,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:07,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:51:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:51:07,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:51:07,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:07,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:51:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:51:07,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:51:07,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:07,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:07,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:07,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:51:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:07,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:07,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:07,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:07,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:07,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:51:07,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:07,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:07,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:51:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:51:08,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:51:08,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:51:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:51:08,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:51:08,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:51:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:51:08,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:51:08,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:51:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:51:08,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:51:08,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:51:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:51:08,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-13 08:51:08,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:08,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-13 08:51:08,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1585 [2020-10-13 08:51:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:51:08,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:51:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 08:51:08,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:08,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:51:08,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:51:08,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1697 [2020-10-13 08:51:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:51:08,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:51:08,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:51:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10158 backedges. 1437 proven. 111 refuted. 0 times theorem prover too weak. 8610 trivial. 0 not checked. [2020-10-13 08:51:10,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517327513] [2020-10-13 08:51:10,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:10,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:51:10,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200123770] [2020-10-13 08:51:10,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:51:10,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:10,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:51:10,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:51:10,664 INFO L87 Difference]: Start difference. First operand 8201 states and 9225 transitions. Second operand 6 states. [2020-10-13 08:51:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:11,853 INFO L93 Difference]: Finished difference Result 15913 states and 17887 transitions. [2020-10-13 08:51:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:51:11,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1854 [2020-10-13 08:51:11,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:11,867 INFO L225 Difference]: With dead ends: 15913 [2020-10-13 08:51:11,867 INFO L226 Difference]: Without dead ends: 7854 [2020-10-13 08:51:11,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:51:11,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7854 states. [2020-10-13 08:51:11,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7854 to 7833. [2020-10-13 08:51:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7833 states. [2020-10-13 08:51:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7833 states to 7833 states and 8675 transitions. [2020-10-13 08:51:11,957 INFO L78 Accepts]: Start accepts. Automaton has 7833 states and 8675 transitions. Word has length 1854 [2020-10-13 08:51:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:11,958 INFO L479 AbstractCegarLoop]: Abstraction has 7833 states and 8675 transitions. [2020-10-13 08:51:11,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:51:11,958 INFO L276 IsEmpty]: Start isEmpty. Operand 7833 states and 8675 transitions. [2020-10-13 08:51:11,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1868 [2020-10-13 08:51:11,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:11,980 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:51:11,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 08:51:11,980 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:11,981 INFO L82 PathProgramCache]: Analyzing trace with hash -584657405, now seen corresponding path program 1 times [2020-10-13 08:51:11,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:11,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839791604] [2020-10-13 08:51:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:12,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:12,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:13,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:15,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:16,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1905 [2020-10-13 08:51:17,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:51:17,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-13 08:51:17,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1657 [2020-10-13 08:51:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 08:51:17,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:17,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 08:51:17,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:51:17,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:51:17,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:51:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:51:17,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:51:17,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:51:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:51:17,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:51:17,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:51:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:51:17,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:51:17,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:51:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:51:17,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:51:17,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:51:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:51:17,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:51:17,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:51:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:17,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:51:17,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:51:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:51:17,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:51:17,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:51:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:51:17,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:51:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:51:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:51:17,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:51:17,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:51:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:51:17,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:51:17,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:51:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:51:17,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:51:17,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-13 08:51:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:51:17,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:51:17,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:17,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:17,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:51:17,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:17,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1631 [2020-10-13 08:51:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:18,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:18,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:18,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:51:18,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:51:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 08:51:18,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:51:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:51:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:18,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1710 [2020-10-13 08:51:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:18,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:18,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 10894 backedges. 1202 proven. 78 refuted. 0 times theorem prover too weak. 9614 trivial. 0 not checked. [2020-10-13 08:51:19,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839791604] [2020-10-13 08:51:19,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:19,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:51:19,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113474677] [2020-10-13 08:51:19,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:51:19,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:19,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:51:19,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:51:19,591 INFO L87 Difference]: Start difference. First operand 7833 states and 8675 transitions. Second operand 7 states. [2020-10-13 08:51:20,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:20,724 INFO L93 Difference]: Finished difference Result 15568 states and 17321 transitions. [2020-10-13 08:51:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:51:20,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1867 [2020-10-13 08:51:20,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:20,736 INFO L225 Difference]: With dead ends: 15568 [2020-10-13 08:51:20,737 INFO L226 Difference]: Without dead ends: 7875 [2020-10-13 08:51:20,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:51:20,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7875 states. [2020-10-13 08:51:20,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7875 to 7833. [2020-10-13 08:51:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7833 states. [2020-10-13 08:51:20,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7833 states to 7833 states and 8658 transitions. [2020-10-13 08:51:20,837 INFO L78 Accepts]: Start accepts. Automaton has 7833 states and 8658 transitions. Word has length 1867 [2020-10-13 08:51:20,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:20,838 INFO L479 AbstractCegarLoop]: Abstraction has 7833 states and 8658 transitions. [2020-10-13 08:51:20,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:51:20,838 INFO L276 IsEmpty]: Start isEmpty. Operand 7833 states and 8658 transitions. [2020-10-13 08:51:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1873 [2020-10-13 08:51:20,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:20,867 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:51:20,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 08:51:20,868 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:20,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:20,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1484733620, now seen corresponding path program 1 times [2020-10-13 08:51:20,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:20,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521076817] [2020-10-13 08:51:20,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:21,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:21,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:22,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:25,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1910 [2020-10-13 08:51:26,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:51:26,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-13 08:51:26,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1662 [2020-10-13 08:51:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:51:26,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:26,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:51:26,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:51:26,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:51:26,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:51:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:51:26,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:51:26,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:51:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:51:26,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:51:26,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:51:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:51:26,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 08:51:26,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:51:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:51:26,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:51:26,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:51:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:51:26,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:51:26,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:51:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:26,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:51:26,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:51:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:51:26,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:51:26,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:51:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:51:26,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:51:26,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:51:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:51:26,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:51:26,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:51:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:51:26,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:51:26,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:51:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:51:26,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:51:26,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:26,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-13 08:51:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:26,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:51:26,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:51:26,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 08:51:26,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:27,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1636 [2020-10-13 08:51:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:27,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:27,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:27,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:27,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:51:27,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:51:27,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:51:27,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:27,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:27,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:51:27,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:51:27,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:27,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1715 [2020-10-13 08:51:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:27,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:27,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:27,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:51:27,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:51:27,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:27,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-13 08:51:27,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:27,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 10949 backedges. 1202 proven. 78 refuted. 0 times theorem prover too weak. 9669 trivial. 0 not checked. [2020-10-13 08:51:29,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521076817] [2020-10-13 08:51:29,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:29,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:51:29,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144671221] [2020-10-13 08:51:29,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:51:29,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:29,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:51:29,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:51:29,014 INFO L87 Difference]: Start difference. First operand 7833 states and 8658 transitions. Second operand 6 states. [2020-10-13 08:51:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:30,221 INFO L93 Difference]: Finished difference Result 15356 states and 17015 transitions. [2020-10-13 08:51:30,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:51:30,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1872 [2020-10-13 08:51:30,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:30,235 INFO L225 Difference]: With dead ends: 15356 [2020-10-13 08:51:30,235 INFO L226 Difference]: Without dead ends: 7667 [2020-10-13 08:51:30,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:51:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7667 states. [2020-10-13 08:51:30,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7667 to 7647. [2020-10-13 08:51:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7647 states. [2020-10-13 08:51:30,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7647 states to 7647 states and 8426 transitions. [2020-10-13 08:51:30,330 INFO L78 Accepts]: Start accepts. Automaton has 7647 states and 8426 transitions. Word has length 1872 [2020-10-13 08:51:30,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:30,331 INFO L479 AbstractCegarLoop]: Abstraction has 7647 states and 8426 transitions. [2020-10-13 08:51:30,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:51:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 7647 states and 8426 transitions. [2020-10-13 08:51:30,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1881 [2020-10-13 08:51:30,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:30,363 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:51:30,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 08:51:30,363 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:30,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:30,364 INFO L82 PathProgramCache]: Analyzing trace with hash 755913810, now seen corresponding path program 1 times [2020-10-13 08:51:30,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:30,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460006292] [2020-10-13 08:51:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:31,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:34,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:34,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1918 [2020-10-13 08:51:34,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:51:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3325 [2020-10-13 08:51:34,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1637 [2020-10-13 08:51:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:51:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:34,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:34,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:34,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:34,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:34,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:34,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:51:34,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:34,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:34,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:34,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:34,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:34,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:51:34,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:34,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:51:34,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:34,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:34,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:51:34,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:51:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:34,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking...