/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_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:56:30,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:56:30,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:56:30,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:56:30,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:56:30,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:56:30,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:56:30,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:56:30,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:56:30,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:56:30,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:56:30,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:56:30,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:56:30,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:56:30,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:56:30,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:56:30,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:56:30,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:56:30,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:56:30,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:56:30,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:56:30,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:56:30,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:56:30,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:56:30,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:56:30,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:56:30,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:56:30,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:56:30,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:56:30,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:56:30,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:56:30,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:56:30,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:56:30,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:56:30,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:56:30,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:56:30,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:56:30,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:56:30,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:56:30,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:56:30,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:56:30,531 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 08:56:30,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:56:30,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:56:30,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:56:30,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:56:30,555 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:56:30,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:56:30,556 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:56:30,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:56:30,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:56:30,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:56:30,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:56:30,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:56:30,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:56:30,557 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:56:30,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:56:30,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:56:30,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:56:30,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:56:30,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:56:30,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:56:30,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:56:30,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:56:30,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:56:30,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:56:30,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:56:30,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:56:30,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:56:30,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:56:30,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:56:30,560 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 08:56:30,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:56:30,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:56:30,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:56:30,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:56:30,876 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:56:30,876 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label58.c [2020-10-13 08:56:30,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a92674fbb/538d11ad1eb44e3c9342ab22cbd5d7f5/FLAG37709b64f [2020-10-13 08:56:31,486 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:56:31,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label58.c [2020-10-13 08:56:31,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a92674fbb/538d11ad1eb44e3c9342ab22cbd5d7f5/FLAG37709b64f [2020-10-13 08:56:31,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a92674fbb/538d11ad1eb44e3c9342ab22cbd5d7f5 [2020-10-13 08:56:31,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:56:31,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:56:31,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:56:31,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:56:31,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:56:31,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:56:31" (1/1) ... [2020-10-13 08:56:31,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e36d5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:31, skipping insertion in model container [2020-10-13 08:56:31,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:56:31" (1/1) ... [2020-10-13 08:56:31,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:56:31,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:56:32,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:56:32,352 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:56:32,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:56:32,635 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:56:32,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32 WrapperNode [2020-10-13 08:56:32,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:56:32,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:56:32,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:56:32,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:56:32,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (1/1) ... [2020-10-13 08:56:32,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (1/1) ... [2020-10-13 08:56:32,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (1/1) ... [2020-10-13 08:56:32,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (1/1) ... [2020-10-13 08:56:32,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (1/1) ... [2020-10-13 08:56:32,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (1/1) ... [2020-10-13 08:56:32,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (1/1) ... [2020-10-13 08:56:32,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:56:32,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:56:32,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:56:32,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:56:32,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (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 08:56:32,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:56:32,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:56:32,900 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:56:32,900 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:56:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:56:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:56:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:56:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:56:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:56:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:56:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:56:34,542 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:56:34,543 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:56:34,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:56:34 BoogieIcfgContainer [2020-10-13 08:56:34,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:56:34,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:56:34,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:56:34,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:56:34,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:56:31" (1/3) ... [2020-10-13 08:56:34,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39995f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:56:34, skipping insertion in model container [2020-10-13 08:56:34,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:32" (2/3) ... [2020-10-13 08:56:34,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39995f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:56:34, skipping insertion in model container [2020-10-13 08:56:34,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:56:34" (3/3) ... [2020-10-13 08:56:34,559 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label58.c [2020-10-13 08:56:34,570 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:56:34,578 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:56:34,592 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:56:34,618 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:56:34,618 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:56:34,618 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:56:34,618 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:56:34,619 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:56:34,619 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:56:34,619 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:56:34,619 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:56:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:56:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 08:56:34,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:34,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:34,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:34,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1699451235, now seen corresponding path program 1 times [2020-10-13 08:56:34,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:34,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175913365] [2020-10-13 08:56:34,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:34,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 08:56:35,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-13 08:56:35,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:56:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:56:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 08:56:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:56:35,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:35,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:56:35,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:56:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,354 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 08:56:35,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175913365] [2020-10-13 08:56:35,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:56:35,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:56:35,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325148883] [2020-10-13 08:56:35,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:56:35,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:35,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:56:35,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:56:35,387 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:56:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:37,295 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-13 08:56:37,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:37,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-13 08:56:37,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:37,331 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:56:37,332 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:37,347 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 08:56:37,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:37,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:56:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:56:37,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-13 08:56:37,485 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 20 [2020-10-13 08:56:37,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:37,486 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-13 08:56:37,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:56:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-13 08:56:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 08:56:37,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:37,491 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 08:56:37,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:56:37,491 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:37,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:37,492 INFO L82 PathProgramCache]: Analyzing trace with hash -288682451, now seen corresponding path program 1 times [2020-10-13 08:56:37,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:37,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661569179] [2020-10-13 08:56:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:37,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 08:56:38,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:38,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-10-13 08:56:38,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:56:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 08:56:38,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:38,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:38,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:38,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:56:38,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:38,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:38,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:38,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:38,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:56:38,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:38,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:56:38,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:56:38,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:38,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661569179] [2020-10-13 08:56:38,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:38,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:38,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237891930] [2020-10-13 08:56:38,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:38,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:38,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:38,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:38,456 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 5 states. [2020-10-13 08:56:40,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:40,054 INFO L93 Difference]: Finished difference Result 934 states and 1411 transitions. [2020-10-13 08:56:40,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:40,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2020-10-13 08:56:40,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:40,059 INFO L225 Difference]: With dead ends: 934 [2020-10-13 08:56:40,059 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:56:40,061 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 08:56:40,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:56:40,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:56:40,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:56:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 745 transitions. [2020-10-13 08:56:40,138 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 745 transitions. Word has length 89 [2020-10-13 08:56:40,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:40,139 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 745 transitions. [2020-10-13 08:56:40,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 745 transitions. [2020-10-13 08:56:40,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-13 08:56:40,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:40,153 INFO L422 BasicCegarLoop]: trace histogram [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, 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 08:56:40,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:56:40,154 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:40,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1037986407, now seen corresponding path program 1 times [2020-10-13 08:56:40,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:40,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600921943] [2020-10-13 08:56:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:40,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:40,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:40,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:41,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:41,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 08:56:43,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:56:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3150 [2020-10-13 08:56:43,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-13 08:56:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:56:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:43,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:56:43,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:56:43,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:56:43,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:43,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:56:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:56:43,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 08:56:43,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:43,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:56:43,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,739 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:56:43,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600921943] [2020-10-13 08:56:43,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:43,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:43,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687020777] [2020-10-13 08:56:43,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:43,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:43,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:43,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:43,744 INFO L87 Difference]: Start difference. First operand 560 states and 745 transitions. Second operand 5 states. [2020-10-13 08:56:44,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:44,781 INFO L93 Difference]: Finished difference Result 1130 states and 1509 transitions. [2020-10-13 08:56:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:44,783 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-10-13 08:56:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:44,787 INFO L225 Difference]: With dead ends: 1130 [2020-10-13 08:56:44,788 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:56:44,789 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 08:56:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:56:44,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:56:44,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:56:44,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 743 transitions. [2020-10-13 08:56:44,809 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 743 transitions. Word has length 172 [2020-10-13 08:56:44,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:44,809 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 743 transitions. [2020-10-13 08:56:44,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:44,810 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 743 transitions. [2020-10-13 08:56:44,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-13 08:56:44,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:44,814 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 08:56:44,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:56:44,814 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:44,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:44,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1377314575, now seen corresponding path program 1 times [2020-10-13 08:56:44,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:44,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051342442] [2020-10-13 08:56:44,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:44,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:44,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:45,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-13 08:56:47,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:56:47,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2850 [2020-10-13 08:56:47,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-13 08:56:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:56:47,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:47,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:47,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:47,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:47,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:56:47,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:47,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:47,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:47,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:47,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:47,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:56:47,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:56:47,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:47,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:47,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:56:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:47,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:56:47,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 08:56:47,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 08:56:47,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:56:48,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051342442] [2020-10-13 08:56:48,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:48,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:48,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875454304] [2020-10-13 08:56:48,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:48,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:48,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:48,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:48,068 INFO L87 Difference]: Start difference. First operand 560 states and 743 transitions. Second operand 5 states. [2020-10-13 08:56:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:49,243 INFO L93 Difference]: Finished difference Result 1131 states and 1506 transitions. [2020-10-13 08:56:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:49,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-10-13 08:56:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:49,249 INFO L225 Difference]: With dead ends: 1131 [2020-10-13 08:56:49,250 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:56:49,252 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 08:56:49,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:56:49,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:56:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:56:49,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 741 transitions. [2020-10-13 08:56:49,280 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 741 transitions. Word has length 184 [2020-10-13 08:56:49,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:49,282 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 741 transitions. [2020-10-13 08:56:49,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:49,282 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 741 transitions. [2020-10-13 08:56:49,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-13 08:56:49,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:49,289 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:49,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:56:49,289 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:49,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:49,291 INFO L82 PathProgramCache]: Analyzing trace with hash 586177713, now seen corresponding path program 1 times [2020-10-13 08:56:49,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:49,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637478814] [2020-10-13 08:56:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:49,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:50,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-13 08:56:51,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:51,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2346 [2020-10-13 08:56:51,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 08:56:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 08:56:51,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:51,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:51,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:56:51,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:51,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 08:56:51,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:56:51,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:52,038 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:52,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637478814] [2020-10-13 08:56:52,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:52,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:52,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327332480] [2020-10-13 08:56:52,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:52,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:52,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:52,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:52,041 INFO L87 Difference]: Start difference. First operand 560 states and 741 transitions. Second operand 5 states. [2020-10-13 08:56:53,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:53,669 INFO L93 Difference]: Finished difference Result 1302 states and 1789 transitions. [2020-10-13 08:56:53,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:53,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2020-10-13 08:56:53,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:53,681 INFO L225 Difference]: With dead ends: 1302 [2020-10-13 08:56:53,681 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:56:53,683 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 08:56:53,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:56:53,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:56:53,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:56:53,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 988 transitions. [2020-10-13 08:56:53,710 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 988 transitions. Word has length 199 [2020-10-13 08:56:53,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:53,711 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 988 transitions. [2020-10-13 08:56:53,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 988 transitions. [2020-10-13 08:56:53,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-13 08:56:53,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:53,717 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:53,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:56:53,717 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:53,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:53,718 INFO L82 PathProgramCache]: Analyzing trace with hash 769750412, now seen corresponding path program 1 times [2020-10-13 08:56:53,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:53,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679787024] [2020-10-13 08:56:53,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:53,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:53,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:55,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:55,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:58,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:58,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-13 08:56:58,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:58,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 08:56:58,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 265 [2020-10-13 08:56:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 08:56:58,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:58,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:58,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:58,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:58,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:58,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:56:58,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:58,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:58,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:58,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:58,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:58,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:58,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:58,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:58,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:58,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:58,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:56:58,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:58,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:58,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:58,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:58,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:59,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:56:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:59,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:59,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:59,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 08:56:59,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:59,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:56:59,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:59,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:59,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:59,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 08:56:59,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 08:56:59,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679787024] [2020-10-13 08:56:59,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:59,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:59,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527117227] [2020-10-13 08:56:59,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:59,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:59,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:59,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:59,191 INFO L87 Difference]: Start difference. First operand 744 states and 988 transitions. Second operand 5 states. [2020-10-13 08:57:00,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:00,642 INFO L93 Difference]: Finished difference Result 1670 states and 2283 transitions. [2020-10-13 08:57:00,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:57:00,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-10-13 08:57:00,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:00,650 INFO L225 Difference]: With dead ends: 1670 [2020-10-13 08:57:00,650 INFO L226 Difference]: Without dead ends: 932 [2020-10-13 08:57:00,652 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 08:57:00,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-10-13 08:57:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 746. [2020-10-13 08:57:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-13 08:57:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 991 transitions. [2020-10-13 08:57:00,675 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 991 transitions. Word has length 273 [2020-10-13 08:57:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:00,676 INFO L479 AbstractCegarLoop]: Abstraction has 746 states and 991 transitions. [2020-10-13 08:57:00,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:57:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 991 transitions. [2020-10-13 08:57:00,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-13 08:57:00,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:00,681 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 08:57:00,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:57:00,681 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:00,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:00,682 INFO L82 PathProgramCache]: Analyzing trace with hash 666009012, now seen corresponding path program 1 times [2020-10-13 08:57:00,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:00,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709506928] [2020-10-13 08:57:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:00,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-10-13 08:57:02,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:02,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1292 [2020-10-13 08:57:02,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 08:57:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:57:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:57:02,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:02,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:57:02,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:57:02,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:03,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:03,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:03,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:03,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-10-13 08:57:03,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:03,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:03,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:57:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:03,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:03,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:03,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:57:03,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:03,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:57:03,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:57:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 26 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:57:03,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709506928] [2020-10-13 08:57:03,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:03,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:57:03,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551729093] [2020-10-13 08:57:03,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:57:03,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:03,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:57:03,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:57:03,482 INFO L87 Difference]: Start difference. First operand 746 states and 991 transitions. Second operand 8 states. [2020-10-13 08:57:05,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:05,480 INFO L93 Difference]: Finished difference Result 1717 states and 2338 transitions. [2020-10-13 08:57:05,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:57:05,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 285 [2020-10-13 08:57:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:05,494 INFO L225 Difference]: With dead ends: 1717 [2020-10-13 08:57:05,494 INFO L226 Difference]: Without dead ends: 977 [2020-10-13 08:57:05,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:57:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-13 08:57:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 938. [2020-10-13 08:57:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-10-13 08:57:05,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1196 transitions. [2020-10-13 08:57:05,542 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1196 transitions. Word has length 285 [2020-10-13 08:57:05,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:05,542 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1196 transitions. [2020-10-13 08:57:05,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:57:05,543 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1196 transitions. [2020-10-13 08:57:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-13 08:57:05,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:05,549 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 08:57:05,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:57:05,549 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:05,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1188860996, now seen corresponding path program 1 times [2020-10-13 08:57:05,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:05,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119328128] [2020-10-13 08:57:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:05,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:05,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:05,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:06,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:08,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:08,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-13 08:57:08,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:57:08,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2433 [2020-10-13 08:57:08,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 08:57:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:57:08,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:08,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:08,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:08,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:08,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:08,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:08,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:08,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:08,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:08,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:08,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:08,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 08:57:08,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:08,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 08:57:08,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:08,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 08:57:08,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:08,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 08:57:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:08,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:08,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:08,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:08,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:57:08,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:08,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-13 08:57:08,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:57:08,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:08,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-13 08:57:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:08,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:08,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:08,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:57:08,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:57:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:57:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 124 proven. 85 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-13 08:57:08,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119328128] [2020-10-13 08:57:08,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:08,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:57:08,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877383039] [2020-10-13 08:57:08,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:57:08,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:08,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:57:08,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:57:08,922 INFO L87 Difference]: Start difference. First operand 938 states and 1196 transitions. Second operand 7 states. [2020-10-13 08:57:10,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:10,959 INFO L93 Difference]: Finished difference Result 1779 states and 2393 transitions. [2020-10-13 08:57:10,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 08:57:10,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 302 [2020-10-13 08:57:10,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:10,969 INFO L225 Difference]: With dead ends: 1779 [2020-10-13 08:57:10,969 INFO L226 Difference]: Without dead ends: 978 [2020-10-13 08:57:10,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:57:10,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-10-13 08:57:11,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 938. [2020-10-13 08:57:11,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-10-13 08:57:11,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1072 transitions. [2020-10-13 08:57:11,019 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1072 transitions. Word has length 302 [2020-10-13 08:57:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:11,019 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1072 transitions. [2020-10-13 08:57:11,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:57:11,020 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1072 transitions. [2020-10-13 08:57:11,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-10-13 08:57:11,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:11,024 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:11,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:57:11,025 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:11,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:11,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1980129601, now seen corresponding path program 1 times [2020-10-13 08:57:11,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:11,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413936663] [2020-10-13 08:57:11,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:11,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:11,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:11,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:15,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:15,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 409 [2020-10-13 08:57:15,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:57:15,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4021 [2020-10-13 08:57:15,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:57:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 08:57:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:57:15,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:15,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:15,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:15,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:15,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:15,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:15,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:15,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:15,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:15,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:15,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:15,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 08:57:15,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:57:15,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:15,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:15,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:15,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:16,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:16,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:16,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:16,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-13 08:57:16,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:16,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:57:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:16,590 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-10-13 08:57:16,753 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-10-13 08:57:16,918 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-10-13 08:57:17,091 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-10-13 08:57:17,287 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-13 08:57:17,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-10-13 08:57:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:17,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:17,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:17,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:57:17,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:57:17,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:57:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 150 proven. 85 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-13 08:57:18,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413936663] [2020-10-13 08:57:18,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:18,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:57:18,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091361659] [2020-10-13 08:57:18,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:57:18,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:18,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:57:18,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:57:18,478 INFO L87 Difference]: Start difference. First operand 938 states and 1072 transitions. Second operand 13 states. [2020-10-13 08:57:19,226 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-13 08:57:19,414 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-13 08:57:19,698 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-13 08:57:19,889 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-13 08:57:20,067 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2020-10-13 08:57:20,646 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-13 08:57:21,165 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2020-10-13 08:57:21,666 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-13 08:57:21,869 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-10-13 08:57:22,170 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2020-10-13 08:57:22,414 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2020-10-13 08:57:22,806 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2020-10-13 08:57:23,204 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 68 [2020-10-13 08:57:23,735 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2020-10-13 08:57:24,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:24,253 INFO L93 Difference]: Finished difference Result 1882 states and 2178 transitions. [2020-10-13 08:57:24,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:57:24,254 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 395 [2020-10-13 08:57:24,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:24,260 INFO L225 Difference]: With dead ends: 1882 [2020-10-13 08:57:24,260 INFO L226 Difference]: Without dead ends: 1057 [2020-10-13 08:57:24,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=249, Invalid=621, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:57:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2020-10-13 08:57:24,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1047. [2020-10-13 08:57:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2020-10-13 08:57:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1183 transitions. [2020-10-13 08:57:24,289 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1183 transitions. Word has length 395 [2020-10-13 08:57:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:24,290 INFO L479 AbstractCegarLoop]: Abstraction has 1047 states and 1183 transitions. [2020-10-13 08:57:24,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:57:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1183 transitions. [2020-10-13 08:57:24,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2020-10-13 08:57:24,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:24,295 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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 08:57:24,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:57:24,296 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:24,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:24,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2079991693, now seen corresponding path program 1 times [2020-10-13 08:57:24,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:24,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247945398] [2020-10-13 08:57:24,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:24,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:24,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:26,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:26,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 520 [2020-10-13 08:57:26,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:26,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2483 [2020-10-13 08:57:26,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:57:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-13 08:57:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:57:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:27,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:27,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:27,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:27,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:27,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:27,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:27,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:27,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:27,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:27,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:27,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:27,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:27,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:27,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:27,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:27,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:57:27,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:27,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:27,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:27,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:27,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:27,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:27,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 08:57:27,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 08:57:27,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:27,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:27,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:27,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:27,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:27,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:27,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:27,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-13 08:57:27,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:27,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:57:27,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:27,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:27,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:28,261 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-13 08:57:28,390 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-10-13 08:57:28,539 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-10-13 08:57:28,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2020-10-13 08:57:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:28,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:28,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:28,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:57:28,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:57:28,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:57:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 278 proven. 85 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2020-10-13 08:57:29,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247945398] [2020-10-13 08:57:29,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:29,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:57:29,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269828114] [2020-10-13 08:57:29,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:57:29,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:29,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:57:29,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:57:29,560 INFO L87 Difference]: Start difference. First operand 1047 states and 1183 transitions. Second operand 13 states. [2020-10-13 08:57:30,172 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-13 08:57:30,312 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-10-13 08:57:30,496 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2020-10-13 08:57:30,708 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-13 08:57:30,953 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-10-13 08:57:31,112 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-13 08:57:31,378 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2020-10-13 08:57:32,343 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-13 08:57:32,505 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 08:57:32,798 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-10-13 08:57:33,076 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-13 08:57:33,260 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2020-10-13 08:57:33,546 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 56 [2020-10-13 08:57:34,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:34,118 INFO L93 Difference]: Finished difference Result 2098 states and 2398 transitions. [2020-10-13 08:57:34,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:57:34,118 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 504 [2020-10-13 08:57:34,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:34,124 INFO L225 Difference]: With dead ends: 2098 [2020-10-13 08:57:34,124 INFO L226 Difference]: Without dead ends: 1172 [2020-10-13 08:57:34,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:57:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2020-10-13 08:57:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1164. [2020-10-13 08:57:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1164 states. [2020-10-13 08:57:34,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1302 transitions. [2020-10-13 08:57:34,155 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1302 transitions. Word has length 504 [2020-10-13 08:57:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:34,156 INFO L479 AbstractCegarLoop]: Abstraction has 1164 states and 1302 transitions. [2020-10-13 08:57:34,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:57:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1302 transitions. [2020-10-13 08:57:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2020-10-13 08:57:34,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:34,163 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2020-10-13 08:57:34,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:57:34,164 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:34,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:34,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1826198865, now seen corresponding path program 1 times [2020-10-13 08:57:34,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:34,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506645660] [2020-10-13 08:57:34,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:34,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:34,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:35,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:37,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:37,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 639 [2020-10-13 08:57:37,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:57:37,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3625 [2020-10-13 08:57:37,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:37,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:57:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:57:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-13 08:57:37,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 24 [2020-10-13 08:57:38,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:38,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:38,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:38,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:38,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:38,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:38,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:38,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:38,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:38,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:38,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:38,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:38,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:38,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:57:38,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:38,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:38,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:38,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:38,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:38,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:38,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:38,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:57:38,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:38,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:38,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:38,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:38,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:38,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:38,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:38,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:38,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:38,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 08:57:38,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:38,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:38,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:38,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 08:57:38,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:38,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:38,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:38,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:39,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:39,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:39,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:39,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 940 [2020-10-13 08:57:39,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:39,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:39,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:39,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:39,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:57:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:39,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:39,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:39,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:57:39,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:39,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:57:39,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:57:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 414 proven. 85 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-13 08:57:39,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506645660] [2020-10-13 08:57:39,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:39,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:57:39,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650245769] [2020-10-13 08:57:39,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:57:39,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:39,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:57:39,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:57:39,780 INFO L87 Difference]: Start difference. First operand 1164 states and 1302 transitions. Second operand 8 states. [2020-10-13 08:57:41,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:41,677 INFO L93 Difference]: Finished difference Result 2348 states and 2661 transitions. [2020-10-13 08:57:41,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:57:41,679 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 621 [2020-10-13 08:57:41,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:41,687 INFO L225 Difference]: With dead ends: 2348 [2020-10-13 08:57:41,687 INFO L226 Difference]: Without dead ends: 1372 [2020-10-13 08:57:41,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 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 08:57:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2020-10-13 08:57:41,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1346. [2020-10-13 08:57:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-10-13 08:57:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1487 transitions. [2020-10-13 08:57:41,723 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1487 transitions. Word has length 621 [2020-10-13 08:57:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:41,724 INFO L479 AbstractCegarLoop]: Abstraction has 1346 states and 1487 transitions. [2020-10-13 08:57:41,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:57:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1487 transitions. [2020-10-13 08:57:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2020-10-13 08:57:41,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:41,732 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2020-10-13 08:57:41,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:57:41,733 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:41,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:41,733 INFO L82 PathProgramCache]: Analyzing trace with hash 2076955013, now seen corresponding path program 1 times [2020-10-13 08:57:41,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:41,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609141935] [2020-10-13 08:57:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:41,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:42,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:42,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:46,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:46,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 722 [2020-10-13 08:57:46,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:57:46,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-13 08:57:46,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:46,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:57:46,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-13 08:57:46,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:46,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:47,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:47,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:47,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:47,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:47,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:57:47,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:47,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:47,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:47,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:47,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:47,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:47,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:57:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:47,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:47,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:47,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:47,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:47,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:57:47,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:47,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:47,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:47,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:47,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:47,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:47,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:57:47,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:47,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:47,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:47,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:47,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:47,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:47,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:47,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:47,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:57:47,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:47,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:57:47,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:57:47,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:47,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:57:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:47,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:47,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:47,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:47,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:47,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:47,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-10-13 08:57:47,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:57:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:47,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:48,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-13 08:57:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:48,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:48,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:48,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:57:48,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:57:48,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:57:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:48,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:50,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1491 backedges. 514 proven. 85 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2020-10-13 08:57:50,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609141935] [2020-10-13 08:57:50,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:50,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:57:50,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214193219] [2020-10-13 08:57:50,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:57:50,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:50,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:57:50,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:57:50,178 INFO L87 Difference]: Start difference. First operand 1346 states and 1487 transitions. Second operand 13 states. [2020-10-13 08:57:50,681 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-13 08:57:51,022 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-13 08:57:51,225 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-13 08:57:51,370 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-13 08:57:51,521 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-13 08:57:51,917 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-13 08:57:52,066 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-10-13 08:57:52,266 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2020-10-13 08:57:52,870 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-10-13 08:57:53,280 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-10-13 08:57:53,432 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-10-13 08:57:53,600 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-13 08:57:54,106 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-13 08:57:54,332 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2020-10-13 08:57:54,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:54,802 INFO L93 Difference]: Finished difference Result 2694 states and 3005 transitions. [2020-10-13 08:57:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:57:54,803 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 702 [2020-10-13 08:57:54,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:54,810 INFO L225 Difference]: With dead ends: 2694 [2020-10-13 08:57:54,810 INFO L226 Difference]: Without dead ends: 1529 [2020-10-13 08:57:54,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:57:54,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2020-10-13 08:57:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1525. [2020-10-13 08:57:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2020-10-13 08:57:54,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1670 transitions. [2020-10-13 08:57:54,850 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1670 transitions. Word has length 702 [2020-10-13 08:57:54,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:54,851 INFO L479 AbstractCegarLoop]: Abstraction has 1525 states and 1670 transitions. [2020-10-13 08:57:54,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:57:54,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1670 transitions. [2020-10-13 08:57:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-10-13 08:57:54,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:54,861 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2020-10-13 08:57:54,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:57:54,862 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:54,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1524158463, now seen corresponding path program 1 times [2020-10-13 08:57:54,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:54,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786194467] [2020-10-13 08:57:54,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:55,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:57,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:57,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 800 [2020-10-13 08:57:57,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:57,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2784 [2020-10-13 08:57:57,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:57:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:57:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:57:57,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:57,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:57,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:57,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:57,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:57,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:57,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:57,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:57,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:57,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:57,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:57,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:57,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:57:57,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:57,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:57,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:58,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:58,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:58,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:58,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:58,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:58,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:58,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:58,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:57:58,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:58,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:58,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:58,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:58,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:58,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:58,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:57:58,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:58,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 08:57:58,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:57:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:58,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:57:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:58,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:58,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:59,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:59,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 949 [2020-10-13 08:57:59,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:57:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:59,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:59,849 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-13 08:58:00,017 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2020-10-13 08:58:00,191 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-10-13 08:58:00,370 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-10-13 08:58:00,577 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-13 08:58:01,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-13 08:58:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:01,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:01,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:01,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:58:01,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:01,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:58:01,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:58:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:01,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1667 backedges. 592 proven. 85 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2020-10-13 08:58:02,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786194467] [2020-10-13 08:58:02,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:02,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:58:02,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984519796] [2020-10-13 08:58:02,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:58:02,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:02,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:58:02,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:58:02,766 INFO L87 Difference]: Start difference. First operand 1525 states and 1670 transitions. Second operand 13 states. [2020-10-13 08:58:03,404 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-10-13 08:58:03,963 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2020-10-13 08:58:04,236 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2020-10-13 08:58:04,503 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2020-10-13 08:58:04,884 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2020-10-13 08:58:05,162 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2020-10-13 08:58:06,125 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2020-10-13 08:58:06,657 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 08:58:06,887 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2020-10-13 08:58:07,111 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2020-10-13 08:58:07,442 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2020-10-13 08:58:07,740 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 63 [2020-10-13 08:58:08,211 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2020-10-13 08:58:08,643 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2020-10-13 08:58:08,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:08,763 INFO L93 Difference]: Finished difference Result 3056 states and 3378 transitions. [2020-10-13 08:58:08,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 08:58:08,764 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 780 [2020-10-13 08:58:08,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:08,771 INFO L225 Difference]: With dead ends: 3056 [2020-10-13 08:58:08,771 INFO L226 Difference]: Without dead ends: 1708 [2020-10-13 08:58:08,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:58:08,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2020-10-13 08:58:08,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1700. [2020-10-13 08:58:08,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2020-10-13 08:58:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 1848 transitions. [2020-10-13 08:58:08,811 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 1848 transitions. Word has length 780 [2020-10-13 08:58:08,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:08,813 INFO L479 AbstractCegarLoop]: Abstraction has 1700 states and 1848 transitions. [2020-10-13 08:58:08,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:58:08,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 1848 transitions. [2020-10-13 08:58:08,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2020-10-13 08:58:08,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:08,824 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 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, 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, 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, 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] [2020-10-13 08:58:08,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:58:08,825 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:08,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:08,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1545557359, now seen corresponding path program 1 times [2020-10-13 08:58:08,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:08,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544999676] [2020-10-13 08:58:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:09,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:09,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:11,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:11,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 901 [2020-10-13 08:58:11,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:11,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2980 [2020-10-13 08:58:11,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:11,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:58:11,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-13 08:58:11,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 08:58:11,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:12,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:12,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:12,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:12,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:12,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:58:12,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:12,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:12,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:12,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:12,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:12,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:12,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:12,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:58:12,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:12,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:12,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:12,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:12,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:12,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:12,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:12,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:12,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:12,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:58:12,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:12,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:12,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:58:12,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:12,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:12,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:12,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:12,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:58:12,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:12,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:12,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:12,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:12,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:58:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:12,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:12,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:12,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:12,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:58:12,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:12,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:12,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:58:12,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:12,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:12,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:12,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:12,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-13 08:58:12,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:12,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 08:58:12,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:58:12,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:12,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:13,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:13,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:13,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-13 08:58:13,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:58:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:58:13,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:13,882 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2020-10-13 08:58:14,096 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-10-13 08:58:14,300 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-13 08:58:14,522 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-10-13 08:58:14,780 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2020-10-13 08:58:15,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-13 08:58:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:58:15,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:15,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:58:15,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:15,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:58:15,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:15,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2184 backedges. 710 proven. 85 refuted. 0 times theorem prover too weak. 1389 trivial. 0 not checked. [2020-10-13 08:58:17,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544999676] [2020-10-13 08:58:17,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:17,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:58:17,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486383064] [2020-10-13 08:58:17,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:58:17,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:17,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:58:17,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:58:17,209 INFO L87 Difference]: Start difference. First operand 1700 states and 1848 transitions. Second operand 13 states. [2020-10-13 08:58:17,783 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-13 08:58:17,989 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-13 08:58:18,266 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-10-13 08:58:18,498 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-10-13 08:58:18,843 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-13 08:58:19,189 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-13 08:58:19,592 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 92 [2020-10-13 08:58:20,612 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-10-13 08:58:20,874 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2020-10-13 08:58:21,189 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 65 [2020-10-13 08:58:21,446 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 69 [2020-10-13 08:58:21,952 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-10-13 08:58:22,400 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2020-10-13 08:58:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:23,041 INFO L93 Difference]: Finished difference Result 3398 states and 3724 transitions. [2020-10-13 08:58:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:58:23,041 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 879 [2020-10-13 08:58:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:23,048 INFO L225 Difference]: With dead ends: 3398 [2020-10-13 08:58:23,048 INFO L226 Difference]: Without dead ends: 1778 [2020-10-13 08:58:23,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:58:23,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2020-10-13 08:58:23,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1776. [2020-10-13 08:58:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1776 states. [2020-10-13 08:58:23,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 1926 transitions. [2020-10-13 08:58:23,089 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 1926 transitions. Word has length 879 [2020-10-13 08:58:23,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:23,090 INFO L479 AbstractCegarLoop]: Abstraction has 1776 states and 1926 transitions. [2020-10-13 08:58:23,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:58:23,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 1926 transitions. [2020-10-13 08:58:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2020-10-13 08:58:23,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:23,103 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 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, 7, 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, 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] [2020-10-13 08:58:23,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:58:23,103 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:23,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:23,104 INFO L82 PathProgramCache]: Analyzing trace with hash -956287667, now seen corresponding path program 1 times [2020-10-13 08:58:23,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:23,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840935472] [2020-10-13 08:58:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:23,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:27,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:27,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 975 [2020-10-13 08:58:27,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4110 [2020-10-13 08:58:27,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:58:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-13 08:58:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-13 08:58:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:27,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:27,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:27,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:27,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:27,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:27,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:58:27,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:27,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:27,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:27,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:27,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:27,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:27,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:27,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:58:27,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:27,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:27,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:27,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:27,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:27,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:27,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:27,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:27,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:27,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:27,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:27,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:27,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:27,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:27,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:27,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:27,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:27,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:58:27,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:27,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:27,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:27,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:27,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:58:27,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:27,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:58:27,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:27,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:27,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:58:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:27,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:27,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:27,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:58:27,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:58:27,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-13 08:58:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:27,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-13 08:58:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:28,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:28,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:28,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:28,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:28,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 745 [2020-10-13 08:58:28,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:58:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:58:28,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:28,934 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-10-13 08:58:29,090 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-10-13 08:58:29,253 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-10-13 08:58:29,422 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-10-13 08:58:29,573 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2020-10-13 08:58:29,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-13 08:58:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:29,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:29,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:29,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:58:29,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:29,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:58:29,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:29,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:29,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:58:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:29,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2434 backedges. 784 proven. 85 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2020-10-13 08:58:30,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840935472] [2020-10-13 08:58:30,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:30,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:58:30,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298477761] [2020-10-13 08:58:30,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:58:30,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:30,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:58:30,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:58:30,910 INFO L87 Difference]: Start difference. First operand 1776 states and 1926 transitions. Second operand 13 states. [2020-10-13 08:58:31,870 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-13 08:58:32,011 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-10-13 08:58:32,177 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-10-13 08:58:32,358 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-10-13 08:58:32,501 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-10-13 08:58:32,911 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2020-10-13 08:58:34,121 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2020-10-13 08:58:34,310 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-10-13 08:58:34,538 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-13 08:58:34,804 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-13 08:58:35,024 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-10-13 08:58:35,250 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2020-10-13 08:58:35,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:35,663 INFO L93 Difference]: Finished difference Result 3554 states and 3886 transitions. [2020-10-13 08:58:35,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:58:35,664 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 953 [2020-10-13 08:58:35,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:35,669 INFO L225 Difference]: With dead ends: 3554 [2020-10-13 08:58:35,670 INFO L226 Difference]: Without dead ends: 1944 [2020-10-13 08:58:35,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:58:35,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2020-10-13 08:58:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1936. [2020-10-13 08:58:35,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1936 states. [2020-10-13 08:58:35,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2087 transitions. [2020-10-13 08:58:35,710 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2087 transitions. Word has length 953 [2020-10-13 08:58:35,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:35,710 INFO L479 AbstractCegarLoop]: Abstraction has 1936 states and 2087 transitions. [2020-10-13 08:58:35,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:58:35,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2087 transitions. [2020-10-13 08:58:35,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2020-10-13 08:58:35,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:35,731 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 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, 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, 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] [2020-10-13 08:58:35,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:58:35,731 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:35,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:35,732 INFO L82 PathProgramCache]: Analyzing trace with hash 595487162, now seen corresponding path program 1 times [2020-10-13 08:58:35,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:35,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123284905] [2020-10-13 08:58:35,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 979 [2020-10-13 08:58:37,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1324 [2020-10-13 08:58:37,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:58:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-13 08:58:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-13 08:58:37,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:37,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:58:37,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:37,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:37,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:37,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:37,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:58:37,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:37,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:58:37,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:37,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:37,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:37,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:37,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:58:37,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:37,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:37,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:37,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:37,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:58:37,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:37,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:37,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:37,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:58:37,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:37,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-13 08:58:37,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:58:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:58:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:37,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:37,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:37,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:37,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:58:37,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:37,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 08:58:37,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:58:37,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:38,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2729 backedges. 1357 proven. 6 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-13 08:58:38,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123284905] [2020-10-13 08:58:38,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:38,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:58:38,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211309947] [2020-10-13 08:58:38,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:58:38,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:38,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:58:38,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:58:38,430 INFO L87 Difference]: Start difference. First operand 1936 states and 2087 transitions. Second operand 10 states. [2020-10-13 08:58:41,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:41,677 INFO L93 Difference]: Finished difference Result 4828 states and 5379 transitions. [2020-10-13 08:58:41,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 08:58:41,678 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 955 [2020-10-13 08:58:41,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:41,690 INFO L225 Difference]: With dead ends: 4828 [2020-10-13 08:58:41,690 INFO L226 Difference]: Without dead ends: 3080 [2020-10-13 08:58:41,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2020-10-13 08:58:41,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2020-10-13 08:58:41,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 2688. [2020-10-13 08:58:41,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2688 states. [2020-10-13 08:58:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 3022 transitions. [2020-10-13 08:58:41,751 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 3022 transitions. Word has length 955 [2020-10-13 08:58:41,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:41,752 INFO L479 AbstractCegarLoop]: Abstraction has 2688 states and 3022 transitions. [2020-10-13 08:58:41,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:58:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 3022 transitions. [2020-10-13 08:58:41,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2020-10-13 08:58:41,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:41,766 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 7, 7, 7, 7, 7, 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, 4, 3, 3, 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] [2020-10-13 08:58:41,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:58:41,766 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:41,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:41,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1114900387, now seen corresponding path program 1 times [2020-10-13 08:58:41,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:41,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18869169] [2020-10-13 08:58:41,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:41,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:42,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:42,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:46,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:46,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 987 [2020-10-13 08:58:46,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:58:46,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-13 08:58:46,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:58:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 765 [2020-10-13 08:58:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:58:46,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:47,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:58:47,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:47,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:47,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:47,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:47,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:47,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:47,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:47,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:47,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:58:47,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:47,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:47,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:58:47,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:47,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:47,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:47,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:47,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:47,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 08:58:47,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:47,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:58:47,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:47,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:58:47,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-13 08:58:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:58:47,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:47,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-13 08:58:47,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:58:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:47,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:58:47,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:47,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 863 [2020-10-13 08:58:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:47,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:47,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:47,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:58:47,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:47,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:58:47,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:58:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:47,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3256 backedges. 827 proven. 85 refuted. 0 times theorem prover too weak. 2344 trivial. 0 not checked. [2020-10-13 08:58:48,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18869169] [2020-10-13 08:58:48,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:48,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:58:48,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109164039] [2020-10-13 08:58:48,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:58:48,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:48,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:58:48,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:58:48,651 INFO L87 Difference]: Start difference. First operand 2688 states and 3022 transitions. Second operand 10 states. [2020-10-13 08:58:50,411 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-13 08:58:50,596 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-13 08:58:50,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:50,973 INFO L93 Difference]: Finished difference Result 5305 states and 5987 transitions. [2020-10-13 08:58:50,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 08:58:50,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 961 [2020-10-13 08:58:50,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:50,984 INFO L225 Difference]: With dead ends: 5305 [2020-10-13 08:58:50,984 INFO L226 Difference]: Without dead ends: 2741 [2020-10-13 08:58:50,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-10-13 08:58:50,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2020-10-13 08:58:51,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2678. [2020-10-13 08:58:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2678 states. [2020-10-13 08:58:51,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 2960 transitions. [2020-10-13 08:58:51,037 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 2960 transitions. Word has length 961 [2020-10-13 08:58:51,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:51,038 INFO L479 AbstractCegarLoop]: Abstraction has 2678 states and 2960 transitions. [2020-10-13 08:58:51,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:58:51,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 2960 transitions. [2020-10-13 08:58:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1068 [2020-10-13 08:58:51,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:51,052 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 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, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:51,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:58:51,053 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:51,053 INFO L82 PathProgramCache]: Analyzing trace with hash -117778647, now seen corresponding path program 1 times [2020-10-13 08:58:51,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:51,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815568866] [2020-10-13 08:58:51,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:52,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1093 [2020-10-13 08:58:54,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:54,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2870 [2020-10-13 08:58:54,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-13 08:58:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:58:54,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:54,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:58:54,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:54,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:58:54,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:54,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:54,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:58:54,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:54,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:54,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:58:54,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:54,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:58:54,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:54,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:54,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:58:54,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:54,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:54,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:54,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 08:58:54,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:54,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:54,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:54,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:58:54,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:58:54,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 08:58:54,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 08:58:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:54,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-13 08:58:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:54,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:54,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:54,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:58:54,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 08:58:54,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:58:54,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 801 proven. 2 refuted. 0 times theorem prover too weak. 2737 trivial. 0 not checked. [2020-10-13 08:58:55,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815568866] [2020-10-13 08:58:55,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:55,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:58:55,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367149915] [2020-10-13 08:58:55,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:58:55,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:55,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:58:55,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:58:55,367 INFO L87 Difference]: Start difference. First operand 2678 states and 2960 transitions. Second operand 7 states. [2020-10-13 08:58:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:57,167 INFO L93 Difference]: Finished difference Result 6146 states and 7124 transitions. [2020-10-13 08:58:57,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:58:57,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1067 [2020-10-13 08:58:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:57,182 INFO L225 Difference]: With dead ends: 6146 [2020-10-13 08:58:57,183 INFO L226 Difference]: Without dead ends: 3466 [2020-10-13 08:58:57,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 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 08:58:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3466 states. [2020-10-13 08:58:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3466 to 3436. [2020-10-13 08:58:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3436 states. [2020-10-13 08:58:57,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 3843 transitions. [2020-10-13 08:58:57,262 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 3843 transitions. Word has length 1067 [2020-10-13 08:58:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:57,263 INFO L479 AbstractCegarLoop]: Abstraction has 3436 states and 3843 transitions. [2020-10-13 08:58:57,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:58:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 3843 transitions. [2020-10-13 08:58:57,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2020-10-13 08:58:57,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:57,280 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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 08:58:57,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:58:57,281 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:57,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1645865755, now seen corresponding path program 1 times [2020-10-13 08:58:57,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:57,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694978757] [2020-10-13 08:58:57,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:57,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:57,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:00,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:02,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:02,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1111 [2020-10-13 08:59:02,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:59:02,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5140 [2020-10-13 08:59:02,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:59:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1003 [2020-10-13 08:59:02,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 08:59:02,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:02,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:59:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:02,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:02,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:59:02,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:59:02,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:02,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:59:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:02,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:02,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:59:02,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:59:02,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:02,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:02,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:59:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:02,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:02,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:02,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:59:02,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:02,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:59:02,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:02,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:02,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:59:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:02,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:02,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:02,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:59:02,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:59:02,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:02,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:59:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:02,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:02,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:02,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:59:02,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:02,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:59:02,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:02,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:02,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:02,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:02,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:59:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:02,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:02,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:02,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:59:02,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:59:02,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:03,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:59:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:03,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:03,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:03,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:59:03,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:03,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 08:59:03,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:03,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:03,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:03,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:03,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:03,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:59:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:03,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:03,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:03,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:59:03,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:59:03,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:59:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:03,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:03,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:03,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 08:59:03,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:59:03,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:59:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:03,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:59:03,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:03,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2020-10-13 08:59:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:03,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:03,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:03,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:59:03,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:03,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:59:03,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:59:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:59:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:59:03,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3581 backedges. 783 proven. 20 refuted. 0 times theorem prover too weak. 2778 trivial. 0 not checked. [2020-10-13 08:59:03,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694978757] [2020-10-13 08:59:03,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:59:03,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:59:03,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927667711] [2020-10-13 08:59:03,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:59:03,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:59:03,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:59:03,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:59:03,695 INFO L87 Difference]: Start difference. First operand 3436 states and 3843 transitions. Second operand 8 states. [2020-10-13 08:59:05,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:59:05,507 INFO L93 Difference]: Finished difference Result 7351 states and 8372 transitions. [2020-10-13 08:59:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:59:05,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1085 [2020-10-13 08:59:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:59:05,523 INFO L225 Difference]: With dead ends: 7351 [2020-10-13 08:59:05,523 INFO L226 Difference]: Without dead ends: 4103 [2020-10-13 08:59:05,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:59:05,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2020-10-13 08:59:05,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 3808. [2020-10-13 08:59:05,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-13 08:59:05,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 4243 transitions. [2020-10-13 08:59:05,601 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 4243 transitions. Word has length 1085 [2020-10-13 08:59:05,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:59:05,602 INFO L479 AbstractCegarLoop]: Abstraction has 3808 states and 4243 transitions. [2020-10-13 08:59:05,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:59:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 4243 transitions. [2020-10-13 08:59:05,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2020-10-13 08:59:05,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:59:05,619 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 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, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:59:05,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:59:05,619 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:59:05,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:59:05,620 INFO L82 PathProgramCache]: Analyzing trace with hash 227535874, now seen corresponding path program 1 times [2020-10-13 08:59:05,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:59:05,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204969571] [2020-10-13 08:59:05,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:59:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:06,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:06,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:08,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:10,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:10,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1112 [2020-10-13 08:59:10,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:59:10,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 08:59:10,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:59:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1092 [2020-10-13 08:59:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 08:59:10,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:59:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:59:11,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:59:11,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:59:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:59:11,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:59:11,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:59:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:59:11,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:59:11,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:59:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:59:11,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:59:11,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:59:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:59:11,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:59:11,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:59:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:59:11,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:59:11,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:59:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:59:11,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:59:11,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:59:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:59:11,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:59:11,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:59:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:59:11,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:59:11,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:11,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-13 08:59:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:11,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:11,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:11,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:59:11,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:11,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:59:11,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:59:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:59:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3654 backedges. 132 proven. 9 refuted. 0 times theorem prover too weak. 3513 trivial. 0 not checked. [2020-10-13 08:59:11,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204969571] [2020-10-13 08:59:11,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:59:11,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:59:11,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597677464] [2020-10-13 08:59:11,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:59:11,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:59:11,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:59:11,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:59:11,864 INFO L87 Difference]: Start difference. First operand 3808 states and 4243 transitions. Second operand 5 states. [2020-10-13 08:59:12,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:59:12,976 INFO L93 Difference]: Finished difference Result 8526 states and 9704 transitions. [2020-10-13 08:59:12,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:59:12,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1086 [2020-10-13 08:59:12,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:59:13,005 INFO L225 Difference]: With dead ends: 8526 [2020-10-13 08:59:13,005 INFO L226 Difference]: Without dead ends: 4906 [2020-10-13 08:59:13,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 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 08:59:13,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4906 states. [2020-10-13 08:59:13,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4906 to 4536. [2020-10-13 08:59:13,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4536 states. [2020-10-13 08:59:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 5161 transitions. [2020-10-13 08:59:13,093 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 5161 transitions. Word has length 1086 [2020-10-13 08:59:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:59:13,094 INFO L479 AbstractCegarLoop]: Abstraction has 4536 states and 5161 transitions. [2020-10-13 08:59:13,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:59:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 5161 transitions. [2020-10-13 08:59:13,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2020-10-13 08:59:13,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:59:13,112 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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 08:59:13,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:59:13,113 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:59:13,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:59:13,113 INFO L82 PathProgramCache]: Analyzing trace with hash -432041662, now seen corresponding path program 1 times [2020-10-13 08:59:13,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:59:13,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520831169] [2020-10-13 08:59:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:59:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:13,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:13,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1116 [2020-10-13 08:59:18,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:59:18,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4751 [2020-10-13 08:59:18,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:59:18,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-13 08:59:18,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 08:59:18,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:59:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:59:18,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:59:18,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:59:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:59:18,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:59:18,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:18,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:59:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:59:18,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:59:18,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:59:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:59:18,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:59:18,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:18,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:59:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:59:18,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:59:18,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:18,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:59:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:59:18,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:59:18,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:18,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:18,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:18,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:59:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:59:18,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:59:18,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:59:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:59:18,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-13 08:59:18,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:59:18,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:18,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:59:18,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:59:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 08:59:18,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 08:59:18,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:59:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:59:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 08:59:18,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:18,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2020-10-13 08:59:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:18,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:18,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:18,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 08:59:18,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:18,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:59:18,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:18,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:18,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 08:59:18,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:18,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3611 backedges. 907 proven. 90 refuted. 0 times theorem prover too weak. 2614 trivial. 0 not checked. [2020-10-13 08:59:19,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520831169] [2020-10-13 08:59:19,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:59:19,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:59:19,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448924076] [2020-10-13 08:59:19,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:59:19,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:59:19,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:59:19,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:59:19,367 INFO L87 Difference]: Start difference. First operand 4536 states and 5161 transitions. Second operand 7 states. [2020-10-13 08:59:21,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:59:21,001 INFO L93 Difference]: Finished difference Result 9254 states and 10560 transitions. [2020-10-13 08:59:21,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:59:21,002 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1090 [2020-10-13 08:59:21,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:59:21,016 INFO L225 Difference]: With dead ends: 9254 [2020-10-13 08:59:21,016 INFO L226 Difference]: Without dead ends: 4906 [2020-10-13 08:59:21,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:59:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4906 states. [2020-10-13 08:59:21,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4906 to 4906. [2020-10-13 08:59:21,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4906 states. [2020-10-13 08:59:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4906 states to 4906 states and 5541 transitions. [2020-10-13 08:59:21,107 INFO L78 Accepts]: Start accepts. Automaton has 4906 states and 5541 transitions. Word has length 1090 [2020-10-13 08:59:21,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:59:21,111 INFO L479 AbstractCegarLoop]: Abstraction has 4906 states and 5541 transitions. [2020-10-13 08:59:21,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:59:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4906 states and 5541 transitions. [2020-10-13 08:59:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2020-10-13 08:59:21,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:59:21,136 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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 08:59:21,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:59:21,137 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:59:21,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:59:21,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1145238819, now seen corresponding path program 1 times [2020-10-13 08:59:21,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:59:21,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357697564] [2020-10-13 08:59:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:59:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:21,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:21,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:22,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1119 [2020-10-13 08:59:26,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:59:26,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-13 08:59:26,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:59:26,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-13 08:59:26,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-13 08:59:26,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:59:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:26,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:59:26,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:26,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:59:26,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:26,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:26,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:26,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:59:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:26,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:59:26,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:26,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:59:26,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:26,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:26,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:26,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:59:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:26,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:59:26,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:59:26,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:26,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:59:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:26,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:59:26,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:26,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:59:26,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:26,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:26,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:26,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:59:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:26,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:59:26,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:26,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:59:26,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:26,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:59:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:26,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:59:26,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:26,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:59:26,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:26,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:26,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:26,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:59:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:26,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:59:26,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:26,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:59:26,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:59:26,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:26,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:59:26,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:59:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:26,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:26,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:26,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:59:26,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-13 08:59:26,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:59:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:59:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 08:59:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:26,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 811 [2020-10-13 08:59:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:27,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:27,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:27,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:59:27,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 08:59:27,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:59:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:27,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:27,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 990 [2020-10-13 08:59:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:27,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:27,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 08:59:27,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:27,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:59:27,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:27,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:27,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 08:59:27,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:27,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3617 backedges. 798 proven. 220 refuted. 0 times theorem prover too weak. 2599 trivial. 0 not checked. [2020-10-13 08:59:27,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357697564] [2020-10-13 08:59:27,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:59:27,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:59:27,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276201402] [2020-10-13 08:59:27,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:59:27,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:59:27,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:59:27,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:59:27,752 INFO L87 Difference]: Start difference. First operand 4906 states and 5541 transitions. Second operand 7 states. [2020-10-13 08:59:29,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:59:29,639 INFO L93 Difference]: Finished difference Result 10182 states and 11579 transitions. [2020-10-13 08:59:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:59:29,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1093 [2020-10-13 08:59:29,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:59:29,663 INFO L225 Difference]: With dead ends: 10182 [2020-10-13 08:59:29,664 INFO L226 Difference]: Without dead ends: 5276 [2020-10-13 08:59:29,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:59:29,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2020-10-13 08:59:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 5276. [2020-10-13 08:59:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5276 states. [2020-10-13 08:59:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5276 states to 5276 states and 5946 transitions. [2020-10-13 08:59:29,773 INFO L78 Accepts]: Start accepts. Automaton has 5276 states and 5946 transitions. Word has length 1093 [2020-10-13 08:59:29,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:59:29,774 INFO L479 AbstractCegarLoop]: Abstraction has 5276 states and 5946 transitions. [2020-10-13 08:59:29,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:59:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5276 states and 5946 transitions. [2020-10-13 08:59:29,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1121 [2020-10-13 08:59:29,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:59:29,794 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-13 08:59:29,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:59:29,794 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:59:29,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:59:29,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1320820997, now seen corresponding path program 1 times [2020-10-13 08:59:29,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:59:29,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073764786] [2020-10-13 08:59:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:59:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:30,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:30,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:35,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:35,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1144 [2020-10-13 08:59:35,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:59:35,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-13 08:59:35,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:59:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 850 [2020-10-13 08:59:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 08:59:35,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:35,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:59:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:35,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:35,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:35,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:59:35,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:59:35,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:35,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:59:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:35,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:35,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:35,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:59:35,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:35,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:59:35,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:35,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:35,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:59:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:35,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:35,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:59:35,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:35,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:59:35,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:35,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:35,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:35,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:35,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:35,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:59:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:35,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:35,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:35,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:59:35,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:35,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:59:35,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:35,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:35,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:35,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:35,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:35,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:59:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:35,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:35,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:35,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:59:35,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:35,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:59:35,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:35,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:35,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:59:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:35,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:35,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:35,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:59:35,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:59:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:35,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-13 08:59:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:35,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:35,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:35,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:59:35,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:35,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-13 08:59:35,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:35,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:59:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 08:59:35,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:35,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-13 08:59:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:35,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:36,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:36,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:36,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:59:36,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:59:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 732 [2020-10-13 08:59:36,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:59:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:59:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:59:36,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:59:37,305 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-10-13 08:59:37,528 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-10-13 08:59:37,762 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2020-10-13 08:59:38,004 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2020-10-13 08:59:38,248 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-10-13 08:59:38,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2020-10-13 08:59:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:38,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:38,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:38,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 08:59:38,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:38,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:59:38,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:38,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:38,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 08:59:38,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:38,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3387 backedges. 965 proven. 90 refuted. 0 times theorem prover too weak. 2332 trivial. 0 not checked. [2020-10-13 08:59:41,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073764786] [2020-10-13 08:59:41,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:59:41,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:59:41,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823595464] [2020-10-13 08:59:41,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:59:41,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:59:41,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:59:41,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:59:41,810 INFO L87 Difference]: Start difference. First operand 5276 states and 5946 transitions. Second operand 13 states. [2020-10-13 08:59:42,661 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-10-13 08:59:43,045 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2020-10-13 08:59:43,581 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-10-13 08:59:43,944 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2020-10-13 08:59:44,372 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 77 [2020-10-13 08:59:44,861 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2020-10-13 08:59:45,241 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2020-10-13 08:59:45,698 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-10-13 08:59:46,042 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 52 [2020-10-13 08:59:47,002 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 46 [2020-10-13 08:59:47,335 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 49 [2020-10-13 08:59:47,871 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 54 [2020-10-13 08:59:48,393 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 57 [2020-10-13 08:59:48,846 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 60 [2020-10-13 08:59:49,164 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 63 [2020-10-13 08:59:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:59:49,687 INFO L93 Difference]: Finished difference Result 10554 states and 11926 transitions. [2020-10-13 08:59:49,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 08:59:49,690 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1120 [2020-10-13 08:59:49,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:59:49,706 INFO L225 Difference]: With dead ends: 10554 [2020-10-13 08:59:49,706 INFO L226 Difference]: Without dead ends: 4943 [2020-10-13 08:59:49,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2020-10-13 08:59:49,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2020-10-13 08:59:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4941. [2020-10-13 08:59:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4941 states. [2020-10-13 08:59:49,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4941 states to 4941 states and 5577 transitions. [2020-10-13 08:59:49,817 INFO L78 Accepts]: Start accepts. Automaton has 4941 states and 5577 transitions. Word has length 1120 [2020-10-13 08:59:49,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:59:49,818 INFO L479 AbstractCegarLoop]: Abstraction has 4941 states and 5577 transitions. [2020-10-13 08:59:49,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:59:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 4941 states and 5577 transitions. [2020-10-13 08:59:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1209 [2020-10-13 08:59:49,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:59:49,847 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 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, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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 08:59:49,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:59:49,848 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:59:49,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:59:49,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1325456863, now seen corresponding path program 1 times [2020-10-13 08:59:49,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:59:49,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062563816] [2020-10-13 08:59:49,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:59:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:50,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:50,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:53,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:53,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1236 [2020-10-13 08:59:53,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:59:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3517 [2020-10-13 08:59:53,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:59:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-13 08:59:53,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 08:59:53,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:53,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:59:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:53,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:53,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:59:53,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:53,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:59:53,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:53,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:53,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:53,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:53,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:53,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:59:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:53,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:53,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:53,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:59:53,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:59:53,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:53,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:59:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:53,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:53,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:53,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:59:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:59:53,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:53,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:59:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:53,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:53,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:59:53,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:53,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:59:53,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:53,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:59:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:53,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:53,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:53,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:59:53,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:53,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:59:53,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:53,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:54,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:59:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:54,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:54,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:54,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:59:54,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:54,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:59:54,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:54,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:54,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:59:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:54,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:54,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:54,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:59:54,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:59:54,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:54,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:54,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:59:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:54,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:54,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:54,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:59:54,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:54,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:59:54,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:54,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:54,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:54,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:54,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:54,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:59:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:54,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:54,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:54,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:59:54,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:54,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 08:59:54,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:59:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:59:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:59:54,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:54,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:59:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:54,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:54,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:54,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 08:59:54,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:54,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:59:54,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:59:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:59:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 08:59:54,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:54,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-13 08:59:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:54,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:54,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:59:54,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 08:59:54,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:59:54,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:59:54,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:59:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:59:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 08:59:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:59:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:59:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4562 backedges. 1044 proven. 90 refuted. 0 times theorem prover too weak. 3428 trivial. 0 not checked. [2020-10-13 08:59:55,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2062563816] [2020-10-13 08:59:55,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:59:55,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:59:55,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169985730] [2020-10-13 08:59:55,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:59:55,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:59:55,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:59:55,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:59:55,669 INFO L87 Difference]: Start difference. First operand 4941 states and 5577 transitions. Second operand 8 states. [2020-10-13 08:59:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:59:58,278 INFO L93 Difference]: Finished difference Result 9878 states and 11213 transitions. [2020-10-13 08:59:58,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:59:58,279 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1208 [2020-10-13 08:59:58,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:59:58,293 INFO L225 Difference]: With dead ends: 9878 [2020-10-13 08:59:58,293 INFO L226 Difference]: Without dead ends: 5125 [2020-10-13 08:59:58,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:59:58,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5125 states. [2020-10-13 08:59:58,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5125 to 4759. [2020-10-13 08:59:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4759 states. [2020-10-13 08:59:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4759 states to 4759 states and 5373 transitions. [2020-10-13 08:59:58,396 INFO L78 Accepts]: Start accepts. Automaton has 4759 states and 5373 transitions. Word has length 1208 [2020-10-13 08:59:58,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:59:58,398 INFO L479 AbstractCegarLoop]: Abstraction has 4759 states and 5373 transitions. [2020-10-13 08:59:58,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:59:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 4759 states and 5373 transitions. [2020-10-13 08:59:58,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2020-10-13 08:59:58,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:59:58,421 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 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, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 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] [2020-10-13 08:59:58,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:59:58,422 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:59:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:59:58,422 INFO L82 PathProgramCache]: Analyzing trace with hash 783033043, now seen corresponding path program 1 times [2020-10-13 08:59:58,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:59:58,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337237019] [2020-10-13 08:59:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:59:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:59:58,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:59:59,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking...