/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/Problem01_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:04:52,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:04:52,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:04:52,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:04:52,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:04:52,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:04:52,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:04:52,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:04:52,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:04:52,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:04:52,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:04:52,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:04:52,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:04:52,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:04:52,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:04:52,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:04:52,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:04:52,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:04:52,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:04:52,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:04:52,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:04:52,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:04:52,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:04:52,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:04:52,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:04:52,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:04:52,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:04:52,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:04:52,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:04:52,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:04:52,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:04:52,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:04:52,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:04:52,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:04:52,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:04:52,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:04:52,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:04:52,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:04:52,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:04:52,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:04:52,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:04:52,486 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 06:04:52,509 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:04:52,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:04:52,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:04:52,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:04:52,511 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:04:52,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:04:52,511 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:04:52,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:04:52,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:04:52,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:04:52,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:04:52,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:04:52,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:04:52,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:04:52,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:04:52,513 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:04:52,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:04:52,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:04:52,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:04:52,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:04:52,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:04:52,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:04:52,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:04:52,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:04:52,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:04:52,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:04:52,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:04:52,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:04:52,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:04:52,516 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 06:04:52,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:04:52,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:04:52,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:04:52,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:04:52,851 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:04:52,851 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-10-13 06:04:52,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35d2cfab0/013718966ce84280ac89ed357f5f4e5f/FLAG4da9b5555 [2020-10-13 06:04:53,506 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:04:53,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-10-13 06:04:53,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35d2cfab0/013718966ce84280ac89ed357f5f4e5f/FLAG4da9b5555 [2020-10-13 06:04:53,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35d2cfab0/013718966ce84280ac89ed357f5f4e5f [2020-10-13 06:04:53,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:04:53,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:04:53,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:04:53,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:04:53,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:04:53,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:04:53" (1/1) ... [2020-10-13 06:04:53,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dcb5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:53, skipping insertion in model container [2020-10-13 06:04:53,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:04:53" (1/1) ... [2020-10-13 06:04:53,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:04:53,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:04:54,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:04:54,367 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:04:54,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:04:54,566 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:04:54,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54 WrapperNode [2020-10-13 06:04:54,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:04:54,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:04:54,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:04:54,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:04:54,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (1/1) ... [2020-10-13 06:04:54,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (1/1) ... [2020-10-13 06:04:54,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (1/1) ... [2020-10-13 06:04:54,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (1/1) ... [2020-10-13 06:04:54,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (1/1) ... [2020-10-13 06:04:54,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (1/1) ... [2020-10-13 06:04:54,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (1/1) ... [2020-10-13 06:04:54,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:04:54,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:04:54,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:04:54,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:04:54,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (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 06:04:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:04:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:04:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:04:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:04:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:04:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:04:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:04:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:04:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:04:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:04:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:04:55,981 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:04:55,981 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:04:55,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:04:55 BoogieIcfgContainer [2020-10-13 06:04:55,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:04:55,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:04:55,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:04:55,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:04:55,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:04:53" (1/3) ... [2020-10-13 06:04:55,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ee105a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:04:55, skipping insertion in model container [2020-10-13 06:04:55,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:54" (2/3) ... [2020-10-13 06:04:55,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ee105a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:04:55, skipping insertion in model container [2020-10-13 06:04:55,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:04:55" (3/3) ... [2020-10-13 06:04:55,996 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2020-10-13 06:04:56,007 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:04:56,015 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:04:56,029 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:04:56,056 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:04:56,056 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:04:56,056 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:04:56,056 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:04:56,057 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:04:56,057 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:04:56,057 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:04:56,057 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:04:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:04:56,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 06:04:56,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:56,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:56,097 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:56,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:56,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1328102103, now seen corresponding path program 1 times [2020-10-13 06:04:56,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:56,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269100762] [2020-10-13 06:04:56,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:56,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:56,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:58,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:58,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 06:04:58,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:58,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1728 [2020-10-13 06:04:58,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:58,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:04:58,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:04:58,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:04:58,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:04:58,853 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-13 06:04:59,064 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-10-13 06:04:59,331 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2020-10-13 06:04:59,593 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 46 [2020-10-13 06:04:59,814 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 43 [2020-10-13 06:05:00,012 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 40 [2020-10-13 06:05:00,190 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 35 [2020-10-13 06:05:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:00,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:00,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:00,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:00,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:00,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:00,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:00,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:00,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:05:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:00,463 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 06:05:00,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269100762] [2020-10-13 06:05:00,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:05:00,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:05:00,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791041948] [2020-10-13 06:05:00,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:05:00,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:00,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:05:00,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:05:00,493 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:05:00,988 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-13 06:05:01,342 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-13 06:05:01,671 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2020-10-13 06:05:02,022 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 109 [2020-10-13 06:05:02,586 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 106 [2020-10-13 06:05:03,252 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 103 [2020-10-13 06:05:03,677 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 98 [2020-10-13 06:05:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:04,896 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:05:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:04,899 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 121 [2020-10-13 06:05:04,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:04,913 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:05:04,913 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:05:04,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:05:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:05:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:05:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:05:04,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:05:04,986 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 121 [2020-10-13 06:05:04,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:04,987 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:05:04,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:05:04,987 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:05:04,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 06:05:04,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:04,992 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:04,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:05:04,993 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:04,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:04,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1343862876, now seen corresponding path program 1 times [2020-10-13 06:05:04,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:04,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149882438] [2020-10-13 06:05:04,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:05,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:05,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:05,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:06,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:06,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 06:05:06,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:06,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1796 [2020-10-13 06:05:06,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:05:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:05:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:07,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:07,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:07,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:07,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:07,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:07,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:05:07,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:07,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:07,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:07,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:07,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:07,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:05:07,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:05:07,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:05:07,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:05:07,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149882438] [2020-10-13 06:05:07,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:07,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:05:07,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175287198] [2020-10-13 06:05:07,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:05:07,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:07,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:05:07,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:05:07,583 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 14 states. [2020-10-13 06:05:07,924 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-13 06:05:08,132 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-13 06:05:08,528 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-13 06:05:09,555 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-13 06:05:09,896 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 06:05:10,270 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-13 06:05:10,467 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-13 06:05:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:11,618 INFO L93 Difference]: Finished difference Result 508 states and 777 transitions. [2020-10-13 06:05:11,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 06:05:11,621 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 129 [2020-10-13 06:05:11,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:11,627 INFO L225 Difference]: With dead ends: 508 [2020-10-13 06:05:11,627 INFO L226 Difference]: Without dead ends: 369 [2020-10-13 06:05:11,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=316, Invalid=740, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 06:05:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-13 06:05:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 278. [2020-10-13 06:05:11,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 06:05:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 357 transitions. [2020-10-13 06:05:11,655 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 357 transitions. Word has length 129 [2020-10-13 06:05:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:11,656 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 357 transitions. [2020-10-13 06:05:11,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:05:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 357 transitions. [2020-10-13 06:05:11,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 06:05:11,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:11,660 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:05:11,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:05:11,661 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:11,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:11,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1456847330, now seen corresponding path program 1 times [2020-10-13 06:05:11,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:11,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038191474] [2020-10-13 06:05:11,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:11,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:11,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 06:05:12,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:12,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-10-13 06:05:12,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:05:12,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:12,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:12,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:12,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:12,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:12,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:12,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:12,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:12,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:05:12,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038191474] [2020-10-13 06:05:12,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:12,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:12,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052461195] [2020-10-13 06:05:12,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:12,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:12,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:12,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:12,895 INFO L87 Difference]: Start difference. First operand 278 states and 357 transitions. Second operand 5 states. [2020-10-13 06:05:13,117 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-13 06:05:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:14,293 INFO L93 Difference]: Finished difference Result 591 states and 814 transitions. [2020-10-13 06:05:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:14,294 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-10-13 06:05:14,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:14,297 INFO L225 Difference]: With dead ends: 591 [2020-10-13 06:05:14,297 INFO L226 Difference]: Without dead ends: 280 [2020-10-13 06:05:14,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:14,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-13 06:05:14,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 278. [2020-10-13 06:05:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 06:05:14,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 332 transitions. [2020-10-13 06:05:14,321 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 332 transitions. Word has length 132 [2020-10-13 06:05:14,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:14,321 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 332 transitions. [2020-10-13 06:05:14,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:14,322 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 332 transitions. [2020-10-13 06:05:14,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-13 06:05:14,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:14,327 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:05:14,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:05:14,327 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:14,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:14,328 INFO L82 PathProgramCache]: Analyzing trace with hash 2050643098, now seen corresponding path program 1 times [2020-10-13 06:05:14,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:14,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231668034] [2020-10-13 06:05:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 06:05:16,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:16,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2246 [2020-10-13 06:05:16,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:05:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:05:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:17,005 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:05:17,242 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 39 [2020-10-13 06:05:17,379 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 37 [2020-10-13 06:05:17,527 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2020-10-13 06:05:17,670 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 34 [2020-10-13 06:05:17,800 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 31 [2020-10-13 06:05:17,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:17,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:17,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:17,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:17,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:17,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:17,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:17,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:17,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:17,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:17,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:05:17,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:17,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 06:05:17,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:05:17,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:05:18,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231668034] [2020-10-13 06:05:18,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:18,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:18,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284791763] [2020-10-13 06:05:18,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:18,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:18,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:18,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:18,190 INFO L87 Difference]: Start difference. First operand 278 states and 332 transitions. Second operand 13 states. [2020-10-13 06:05:18,618 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-13 06:05:18,751 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:05:19,184 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:05:19,584 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:05:19,863 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:05:20,111 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:05:20,473 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2020-10-13 06:05:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:20,810 INFO L93 Difference]: Finished difference Result 556 states and 700 transitions. [2020-10-13 06:05:20,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:05:20,811 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 162 [2020-10-13 06:05:20,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:20,814 INFO L225 Difference]: With dead ends: 556 [2020-10-13 06:05:20,815 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:05:20,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:05:20,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:05:20,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-10-13 06:05:20,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-13 06:05:20,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 380 transitions. [2020-10-13 06:05:20,835 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 380 transitions. Word has length 162 [2020-10-13 06:05:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:20,835 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 380 transitions. [2020-10-13 06:05:20,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 380 transitions. [2020-10-13 06:05:20,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-13 06:05:20,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:20,839 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:20,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:05:20,839 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:20,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:20,840 INFO L82 PathProgramCache]: Analyzing trace with hash 57081525, now seen corresponding path program 1 times [2020-10-13 06:05:20,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:20,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692995708] [2020-10-13 06:05:20,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:20,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:20,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:22,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:25,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:25,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 06:05:25,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:05:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4948 [2020-10-13 06:05:25,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:05:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:05:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:26,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:26,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:26,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:26,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:26,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:26,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:05:26,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:26,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:26,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:26,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:26,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:26,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:26,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:26,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:26,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:05:26,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:26,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:26,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:26,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:05:26,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:05:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:26,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:26,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:26,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:05:26,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:26,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 06:05:26,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:26,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:05:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:05:26,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692995708] [2020-10-13 06:05:26,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:26,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:26,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064808455] [2020-10-13 06:05:26,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:26,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:26,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:26,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:26,513 INFO L87 Difference]: Start difference. First operand 321 states and 380 transitions. Second operand 13 states. [2020-10-13 06:05:27,319 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:05:27,658 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:05:27,929 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:05:28,133 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:05:28,440 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:05:28,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:28,873 INFO L93 Difference]: Finished difference Result 654 states and 817 transitions. [2020-10-13 06:05:28,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:05:28,873 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 179 [2020-10-13 06:05:28,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:28,877 INFO L225 Difference]: With dead ends: 654 [2020-10-13 06:05:28,877 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:05:28,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:05:28,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:05:28,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 393. [2020-10-13 06:05:28,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-13 06:05:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 458 transitions. [2020-10-13 06:05:28,911 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 458 transitions. Word has length 179 [2020-10-13 06:05:28,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:28,913 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 458 transitions. [2020-10-13 06:05:28,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:28,913 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 458 transitions. [2020-10-13 06:05:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-13 06:05:28,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:28,917 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:05:28,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:05:28,917 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:28,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:28,917 INFO L82 PathProgramCache]: Analyzing trace with hash -85177338, now seen corresponding path program 1 times [2020-10-13 06:05:28,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:28,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285222037] [2020-10-13 06:05:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:28,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:29,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:29,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:31,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:31,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-13 06:05:31,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:31,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2211 [2020-10-13 06:05:31,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:05:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:05:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:31,683 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2020-10-13 06:05:31,832 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2020-10-13 06:05:31,985 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 39 [2020-10-13 06:05:32,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:32,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:32,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:32,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:32,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:32,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:32,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:32,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:32,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 06:05:32,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:05:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:05:32,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285222037] [2020-10-13 06:05:32,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:32,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:32,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913157153] [2020-10-13 06:05:32,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:32,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:32,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:32,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:32,800 INFO L87 Difference]: Start difference. First operand 393 states and 458 transitions. Second operand 13 states. [2020-10-13 06:05:33,386 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-10-13 06:05:33,681 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 06:05:34,174 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-13 06:05:34,723 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2020-10-13 06:05:35,052 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2020-10-13 06:05:35,388 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2020-10-13 06:05:35,704 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 100 [2020-10-13 06:05:36,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:36,174 INFO L93 Difference]: Finished difference Result 793 states and 971 transitions. [2020-10-13 06:05:36,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:36,174 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 184 [2020-10-13 06:05:36,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:36,177 INFO L225 Difference]: With dead ends: 793 [2020-10-13 06:05:36,178 INFO L226 Difference]: Without dead ends: 446 [2020-10-13 06:05:36,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:05:36,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-10-13 06:05:36,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 444. [2020-10-13 06:05:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-13 06:05:36,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 510 transitions. [2020-10-13 06:05:36,216 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 510 transitions. Word has length 184 [2020-10-13 06:05:36,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:36,220 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 510 transitions. [2020-10-13 06:05:36,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:36,220 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 510 transitions. [2020-10-13 06:05:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-13 06:05:36,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:36,224 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:36,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:05:36,224 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:36,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:36,225 INFO L82 PathProgramCache]: Analyzing trace with hash 228345895, now seen corresponding path program 1 times [2020-10-13 06:05:36,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:36,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936274897] [2020-10-13 06:05:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:36,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:36,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:36,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:36,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:39,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:39,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-13 06:05:39,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:39,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3515 [2020-10-13 06:05:39,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:39,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:39,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:05:39,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:05:39,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:40,282 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:05:40,466 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 44 [2020-10-13 06:05:40,636 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2020-10-13 06:05:40,793 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 37 [2020-10-13 06:05:40,934 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2020-10-13 06:05:41,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:41,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:41,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:41,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:41,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:05:41,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:41,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:41,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:41,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:41,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:05:41,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:41,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:41,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:41,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:41,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:05:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:41,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:41,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:41,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:05:41,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:41,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:05:41,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:41,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:41,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:41,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:05:41,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:05:41,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936274897] [2020-10-13 06:05:41,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:41,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:41,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19552892] [2020-10-13 06:05:41,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:41,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:41,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:41,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:41,425 INFO L87 Difference]: Start difference. First operand 444 states and 510 transitions. Second operand 13 states. [2020-10-13 06:05:42,113 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:05:42,476 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:05:42,907 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:05:43,165 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:05:43,526 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:05:43,854 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:05:44,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:44,249 INFO L93 Difference]: Finished difference Result 886 states and 1063 transitions. [2020-10-13 06:05:44,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:44,251 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2020-10-13 06:05:44,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:44,254 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:05:44,254 INFO L226 Difference]: Without dead ends: 508 [2020-10-13 06:05:44,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:05:44,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-13 06:05:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-10-13 06:05:44,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-13 06:05:44,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 581 transitions. [2020-10-13 06:05:44,273 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 581 transitions. Word has length 195 [2020-10-13 06:05:44,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:44,273 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 581 transitions. [2020-10-13 06:05:44,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:44,274 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 581 transitions. [2020-10-13 06:05:44,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-13 06:05:44,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:44,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:44,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:05:44,277 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:44,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:44,277 INFO L82 PathProgramCache]: Analyzing trace with hash 784969559, now seen corresponding path program 1 times [2020-10-13 06:05:44,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:44,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406305652] [2020-10-13 06:05:44,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:44,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:44,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:44,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:48,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-13 06:05:48,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:48,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3679 [2020-10-13 06:05:48,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:48,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:48,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:05:48,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:05:48,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,448 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:05:48,626 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:05:48,852 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-13 06:05:49,062 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2020-10-13 06:05:49,267 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 44 [2020-10-13 06:05:49,470 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 40 [2020-10-13 06:05:49,645 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 34 [2020-10-13 06:05:49,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:49,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:49,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:49,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:49,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:49,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:49,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:49,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:49,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:49,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:49,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:49,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:49,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:49,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:05:49,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:49,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:05:49,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:49,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:49,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:05:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:49,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:49,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:49,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:05:49,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:05:49,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:05:49,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:05:50,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406305652] [2020-10-13 06:05:50,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:50,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:50,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146319830] [2020-10-13 06:05:50,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:50,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:50,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:50,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:50,029 INFO L87 Difference]: Start difference. First operand 508 states and 581 transitions. Second operand 13 states. [2020-10-13 06:05:50,929 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:05:51,109 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:05:51,553 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-13 06:05:52,038 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112 [2020-10-13 06:05:52,282 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 06:05:52,578 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-13 06:05:52,947 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2020-10-13 06:05:53,379 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-10-13 06:05:53,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:53,948 INFO L93 Difference]: Finished difference Result 1010 states and 1198 transitions. [2020-10-13 06:05:53,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:05:53,952 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 198 [2020-10-13 06:05:53,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:53,955 INFO L225 Difference]: With dead ends: 1010 [2020-10-13 06:05:53,955 INFO L226 Difference]: Without dead ends: 551 [2020-10-13 06:05:53,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:05:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-10-13 06:05:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 546. [2020-10-13 06:05:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-10-13 06:05:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 626 transitions. [2020-10-13 06:05:53,975 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 626 transitions. Word has length 198 [2020-10-13 06:05:53,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:53,976 INFO L479 AbstractCegarLoop]: Abstraction has 546 states and 626 transitions. [2020-10-13 06:05:53,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:53,976 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 626 transitions. [2020-10-13 06:05:53,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-13 06:05:53,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:53,979 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:53,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:05:53,979 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:53,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1856153523, now seen corresponding path program 1 times [2020-10-13 06:05:53,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:53,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777344663] [2020-10-13 06:05:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:54,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:54,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:54,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:57,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:57,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-13 06:05:57,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:57,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3183 [2020-10-13 06:05:57,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:05:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:05:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:57,616 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:05:57,731 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:05:57,852 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 40 [2020-10-13 06:05:58,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:58,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:58,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:05:58,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:05:58,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:05:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:05:58,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:05:58,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:58,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:05:58,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:05:58,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777344663] [2020-10-13 06:05:58,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:58,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:58,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069598862] [2020-10-13 06:05:58,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:58,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:58,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:58,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:58,407 INFO L87 Difference]: Start difference. First operand 546 states and 626 transitions. Second operand 13 states. [2020-10-13 06:05:59,178 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:05:59,623 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:06:00,074 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:06:00,394 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:06:00,681 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:06:01,069 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:06:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:01,438 INFO L93 Difference]: Finished difference Result 1088 states and 1290 transitions. [2020-10-13 06:06:01,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:06:01,438 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2020-10-13 06:06:01,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:01,442 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:06:01,442 INFO L226 Difference]: Without dead ends: 591 [2020-10-13 06:06:01,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:01,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-10-13 06:06:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2020-10-13 06:06:01,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:06:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 676 transitions. [2020-10-13 06:06:01,465 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 676 transitions. Word has length 201 [2020-10-13 06:06:01,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:01,466 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 676 transitions. [2020-10-13 06:06:01,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:01,466 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 676 transitions. [2020-10-13 06:06:01,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-13 06:06:01,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:01,469 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:06:01,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:06:01,470 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:01,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1991220638, now seen corresponding path program 1 times [2020-10-13 06:06:01,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:01,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616806706] [2020-10-13 06:06:01,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:02,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:04,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:04,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-13 06:06:04,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2643 [2020-10-13 06:06:04,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:06:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:04,425 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 38 [2020-10-13 06:06:04,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:04,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:04,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:04,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:04,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:04,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:04,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:04,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:04,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:04,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:04,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:04,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:06:04,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:04,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:06:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:04,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:04,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:04,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:06:04,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:04,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:06:04,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:04,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:06:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:04,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:04,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:04,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:06:04,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:04,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:06:04,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:04,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:04,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:06:04,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:06:04,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616806706] [2020-10-13 06:06:04,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:04,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:04,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51695949] [2020-10-13 06:06:04,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:04,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:04,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:04,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:04,986 INFO L87 Difference]: Start difference. First operand 589 states and 676 transitions. Second operand 13 states. [2020-10-13 06:06:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:06,619 INFO L93 Difference]: Finished difference Result 1170 states and 1386 transitions. [2020-10-13 06:06:06,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:06:06,621 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 205 [2020-10-13 06:06:06,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:06,625 INFO L225 Difference]: With dead ends: 1170 [2020-10-13 06:06:06,625 INFO L226 Difference]: Without dead ends: 630 [2020-10-13 06:06:06,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:06,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-13 06:06:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 589. [2020-10-13 06:06:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:06:06,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 676 transitions. [2020-10-13 06:06:06,652 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 676 transitions. Word has length 205 [2020-10-13 06:06:06,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:06,656 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 676 transitions. [2020-10-13 06:06:06,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:06,656 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 676 transitions. [2020-10-13 06:06:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-13 06:06:06,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:06,659 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:06:06,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:06:06,659 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:06,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:06,660 INFO L82 PathProgramCache]: Analyzing trace with hash -638362284, now seen corresponding path program 1 times [2020-10-13 06:06:06,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:06,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96689857] [2020-10-13 06:06:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:06,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:09,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:09,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-13 06:06:09,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:09,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2430 [2020-10-13 06:06:09,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:06:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:09,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:09,691 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:06:09,945 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:06:10,175 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 49 [2020-10-13 06:06:10,380 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2020-10-13 06:06:10,593 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 42 [2020-10-13 06:06:10,785 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 39 [2020-10-13 06:06:10,955 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-10-13 06:06:11,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:11,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:11,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:11,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:11,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:06:11,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:11,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:11,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:11,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:11,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:11,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:06:11,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:11,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:11,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:11,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:11,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:06:11,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:11,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:06:11,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:11,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:11,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:11,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:11,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:11,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:06:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:11,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:11,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:11,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:06:11,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:06:11,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:06:11,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:06:11,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96689857] [2020-10-13 06:06:11,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:11,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:11,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019683554] [2020-10-13 06:06:11,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:11,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:11,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:11,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:11,491 INFO L87 Difference]: Start difference. First operand 589 states and 676 transitions. Second operand 13 states. [2020-10-13 06:06:11,882 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:06:12,056 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:06:12,582 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2020-10-13 06:06:13,021 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2020-10-13 06:06:13,343 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:06:13,845 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-10-13 06:06:14,249 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2020-10-13 06:06:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:14,621 INFO L93 Difference]: Finished difference Result 1175 states and 1391 transitions. [2020-10-13 06:06:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:06:14,622 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 223 [2020-10-13 06:06:14,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:14,626 INFO L225 Difference]: With dead ends: 1175 [2020-10-13 06:06:14,626 INFO L226 Difference]: Without dead ends: 635 [2020-10-13 06:06:14,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-10-13 06:06:14,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 589. [2020-10-13 06:06:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:06:14,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 675 transitions. [2020-10-13 06:06:14,659 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 675 transitions. Word has length 223 [2020-10-13 06:06:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:14,660 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 675 transitions. [2020-10-13 06:06:14,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 675 transitions. [2020-10-13 06:06:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-13 06:06:14,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:14,663 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:14,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:06:14,663 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:14,664 INFO L82 PathProgramCache]: Analyzing trace with hash -894976033, now seen corresponding path program 1 times [2020-10-13 06:06:14,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:14,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124805377] [2020-10-13 06:06:14,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:14,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:14,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:14,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:14,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:16,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:16,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-13 06:06:16,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:06:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1891 [2020-10-13 06:06:16,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:06:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:06:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:16,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:17,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:17,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:17,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:17,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:17,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:17,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:17,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:17,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:17,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:17,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:17,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:17,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:17,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:17,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:17,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:17,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:17,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:17,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:17,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:17,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:17,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:06:17,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:17,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:17,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:17,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:06:17,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:06:17,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124805377] [2020-10-13 06:06:17,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:17,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:17,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482849285] [2020-10-13 06:06:17,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:17,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:17,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:17,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:17,230 INFO L87 Difference]: Start difference. First operand 589 states and 675 transitions. Second operand 13 states. [2020-10-13 06:06:18,110 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:06:18,352 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:06:18,846 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:06:19,118 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:06:19,376 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:06:19,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:19,769 INFO L93 Difference]: Finished difference Result 1176 states and 1394 transitions. [2020-10-13 06:06:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:06:19,772 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 235 [2020-10-13 06:06:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:19,775 INFO L225 Difference]: With dead ends: 1176 [2020-10-13 06:06:19,776 INFO L226 Difference]: Without dead ends: 606 [2020-10-13 06:06:19,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:06:19,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-10-13 06:06:19,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 604. [2020-10-13 06:06:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-10-13 06:06:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 691 transitions. [2020-10-13 06:06:19,801 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 691 transitions. Word has length 235 [2020-10-13 06:06:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:19,803 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 691 transitions. [2020-10-13 06:06:19,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 691 transitions. [2020-10-13 06:06:19,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-13 06:06:19,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:19,806 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:06:19,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:06:19,807 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:19,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:19,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1638592990, now seen corresponding path program 1 times [2020-10-13 06:06:19,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:19,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310427110] [2020-10-13 06:06:19,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:19,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:20,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:20,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:20,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-13 06:06:20,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:20,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 913 [2020-10-13 06:06:20,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:06:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:06:20,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:20,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:20,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:20,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:20,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:20,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:20,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:20,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:20,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:20,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:20,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:20,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:20,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:20,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:20,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:20,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:20,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:06:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:20,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:20,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:20,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:06:20,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:20,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:06:20,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:20,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:20,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:06:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:20,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:21,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:21,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:06:21,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:21,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 06:06:21,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:21,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:21,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:06:21,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:06:21,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310427110] [2020-10-13 06:06:21,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:21,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:21,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408145384] [2020-10-13 06:06:21,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:21,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:21,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:21,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:21,307 INFO L87 Difference]: Start difference. First operand 604 states and 691 transitions. Second operand 5 states. [2020-10-13 06:06:22,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:22,294 INFO L93 Difference]: Finished difference Result 1228 states and 1459 transitions. [2020-10-13 06:06:22,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:22,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-10-13 06:06:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:22,298 INFO L225 Difference]: With dead ends: 1228 [2020-10-13 06:06:22,298 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:06:22,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:22,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:06:22,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:06:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:06:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:06:22,308 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 237 [2020-10-13 06:06:22,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:22,309 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:06:22,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:22,309 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:06:22,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-13 06:06:22,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:22,311 INFO L422 BasicCegarLoop]: trace histogram [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, 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 06:06:22,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:06:22,311 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:22,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:22,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1382079450, now seen corresponding path program 1 times [2020-10-13 06:06:22,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:22,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307311836] [2020-10-13 06:06:22,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:22,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:22,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:22,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:23,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:23,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:23,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:26,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:26,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-13 06:06:26,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:06:26,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4121 [2020-10-13 06:06:26,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:06:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:06:26,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:26,924 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-13 06:06:27,116 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-13 06:06:27,341 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2020-10-13 06:06:27,559 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-10-13 06:06:27,781 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 42 [2020-10-13 06:06:27,960 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 38 [2020-10-13 06:06:28,130 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 34 [2020-10-13 06:06:28,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:28,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:28,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:28,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:28,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:28,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:28,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:28,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:28,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:28,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:28,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:28,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:28,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:28,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:28,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:28,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:28,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:28,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:28,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:28,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:28,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:28,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:06:28,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:28,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:28,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:28,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:28,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:28,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:28,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:28,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:28,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:28,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:28,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:06:28,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:06:28,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307311836] [2020-10-13 06:06:28,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:28,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:28,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241125951] [2020-10-13 06:06:28,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:28,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:28,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:28,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:28,486 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:06:29,164 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:06:29,329 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:06:29,667 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2020-10-13 06:06:30,034 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2020-10-13 06:06:30,376 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 108 [2020-10-13 06:06:30,854 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 105 [2020-10-13 06:06:31,268 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 100 [2020-10-13 06:06:31,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:31,942 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:06:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:06:31,946 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 248 [2020-10-13 06:06:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:31,948 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:06:31,948 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:06:31,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:06:31,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:06:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:06:31,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:06:31,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:06:31,959 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 248 [2020-10-13 06:06:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:31,960 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:06:31,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:31,960 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:06:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-13 06:06:31,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:31,962 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:31,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:06:31,962 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:31,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:31,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1220381081, now seen corresponding path program 1 times [2020-10-13 06:06:31,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:31,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349324918] [2020-10-13 06:06:31,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-13 06:06:32,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:32,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-13 06:06:32,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:06:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:06:32,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:32,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:32,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:32,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:32,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:32,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:06:32,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:32,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:32,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:06:32,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:06:32,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:06:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:06:32,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349324918] [2020-10-13 06:06:32,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:32,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:32,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114626514] [2020-10-13 06:06:32,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:32,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:32,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:32,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:32,579 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:06:33,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:33,349 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:06:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:33,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2020-10-13 06:06:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:33,352 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:06:33,352 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:06:33,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:33,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:06:33,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:06:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:06:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:06:33,363 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 260 [2020-10-13 06:06:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:33,363 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:06:33,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:33,364 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:06:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-13 06:06:33,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:33,366 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:06:33,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:06:33,366 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:33,366 INFO L82 PathProgramCache]: Analyzing trace with hash -474457533, now seen corresponding path program 1 times [2020-10-13 06:06:33,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:33,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795764209] [2020-10-13 06:06:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:33,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:33,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:34,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:34,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-13 06:06:34,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:34,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 914 [2020-10-13 06:06:34,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:34,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:34,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:06:34,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:06:34,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:34,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:34,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:34,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:34,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:34,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:34,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:34,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:34,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:34,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:34,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:34,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:34,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:34,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:34,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:34,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:06:34,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:34,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:34,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:34,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:34,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:34,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:34,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:34,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:34,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:06:34,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:34,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:34,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:34,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:34,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:34,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:06:34,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:34,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:34,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:34,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:34,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:06:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:06:35,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795764209] [2020-10-13 06:06:35,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:35,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:35,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227204917] [2020-10-13 06:06:35,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:35,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:35,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:35,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:35,024 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:06:35,661 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:06:35,973 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:06:36,264 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:06:36,551 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-13 06:06:36,804 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2020-10-13 06:06:37,187 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-13 06:06:37,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:37,519 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:06:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:37,520 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 263 [2020-10-13 06:06:37,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:37,523 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:06:37,523 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:06:37,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:06:37,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:06:37,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:06:37,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:06:37,536 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 263 [2020-10-13 06:06:37,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:37,536 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:06:37,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:37,537 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:06:37,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-13 06:06:37,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:37,539 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:37,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:06:37,539 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:37,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:37,540 INFO L82 PathProgramCache]: Analyzing trace with hash -882567993, now seen corresponding path program 1 times [2020-10-13 06:06:37,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:37,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281269781] [2020-10-13 06:06:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:37,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:37,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-13 06:06:38,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:38,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-13 06:06:38,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:06:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:06:38,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:38,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:38,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:38,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:38,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:06:38,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:38,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:06:38,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:38,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:38,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:06:38,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:06:38,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:06:38,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:38,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:06:38,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,599 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:06:38,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281269781] [2020-10-13 06:06:38,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:38,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:06:38,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742527759] [2020-10-13 06:06:38,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:06:38,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:38,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:06:38,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:38,600 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 6 states. [2020-10-13 06:06:39,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:39,435 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:06:39,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:39,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 265 [2020-10-13 06:06:39,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:39,438 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:06:39,438 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:06:39,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:06:39,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:06:39,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:06:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:06:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:06:39,450 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 265 [2020-10-13 06:06:39,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:39,452 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:06:39,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:06:39,453 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:06:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-13 06:06:39,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:39,455 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:06:39,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:06:39,455 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:39,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:39,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1692072352, now seen corresponding path program 1 times [2020-10-13 06:06:39,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:39,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832997181] [2020-10-13 06:06:39,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:39,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:39,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:39,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:40,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:40,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-13 06:06:40,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1039 [2020-10-13 06:06:40,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:06:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:06:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:40,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:40,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:40,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:40,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:40,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:40,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:40,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:40,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:40,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:40,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:40,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:06:40,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:40,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:40,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:40,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:40,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:40,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:40,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:06:40,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:40,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:40,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:40,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:40,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:40,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:40,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:40,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:40,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:40,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:40,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:40,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:40,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:40,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:40,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:40,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:40,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:40,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:06:40,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:40,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:40,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:40,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:40,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:40,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:06:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:40,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:40,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:40,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:06:40,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:06:40,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:40,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:40,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:40,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:06:40,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:40,901 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:06:40,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832997181] [2020-10-13 06:06:40,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:40,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:40,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746903672] [2020-10-13 06:06:40,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:40,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:40,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:40,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:40,903 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 5 states. [2020-10-13 06:06:41,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:41,737 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:06:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:41,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 283 [2020-10-13 06:06:41,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:41,740 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:06:41,741 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:06:41,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:41,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:06:41,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:06:41,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:06:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:06:41,753 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 283 [2020-10-13 06:06:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:41,754 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:06:41,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:41,754 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:06:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-10-13 06:06:41,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:41,757 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:41,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:06:41,757 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:41,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:41,758 INFO L82 PathProgramCache]: Analyzing trace with hash -183712109, now seen corresponding path program 1 times [2020-10-13 06:06:41,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:41,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715439870] [2020-10-13 06:06:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:41,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:42,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 06:06:42,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:42,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-13 06:06:42,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:06:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:06:42,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:42,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:42,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:42,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:42,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:42,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:42,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:42,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:42,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:42,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:42,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:42,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:06:42,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:42,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:42,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:42,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:42,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:42,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:42,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:42,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:42,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:06:42,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:42,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:42,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:42,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:42,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:42,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:42,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:42,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:06:42,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:42,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:42,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:42,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:42,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:06:42,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 06:06:42,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:06:42,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:06:42,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715439870] [2020-10-13 06:06:42,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:42,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:42,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142915704] [2020-10-13 06:06:42,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:42,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:42,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:42,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:42,843 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 5 states. [2020-10-13 06:06:43,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:43,719 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:06:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:43,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 282 [2020-10-13 06:06:43,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:43,722 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:06:43,723 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:06:43,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:06:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:06:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:06:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:06:43,735 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 282 [2020-10-13 06:06:43,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:43,735 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:06:43,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:06:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-13 06:06:43,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:43,738 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:43,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:06:43,738 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:43,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:43,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1144490518, now seen corresponding path program 1 times [2020-10-13 06:06:43,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:43,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883321822] [2020-10-13 06:06:43,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:43,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:45,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:45,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-13 06:06:45,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1901 [2020-10-13 06:06:45,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:06:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:06:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:46,239 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2020-10-13 06:06:46,406 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2020-10-13 06:06:46,568 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2020-10-13 06:06:46,727 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2020-10-13 06:06:46,890 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-13 06:06:46,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:46,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:46,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:46,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:46,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:46,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:46,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:46,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:46,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:46,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:46,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:46,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:46,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:46,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:46,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:46,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:46,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:46,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:47,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:47,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:47,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:47,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:47,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:47,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:06:47,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:47,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:47,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:47,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:47,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:47,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:47,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:47,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:47,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:47,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:47,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:47,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:47,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:47,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:47,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:06:47,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:47,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:47,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:06:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:47,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:47,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:47,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:06:47,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:47,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:47,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:47,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:47,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:47,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:06:47,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:06:47,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883321822] [2020-10-13 06:06:47,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:47,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:47,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318375462] [2020-10-13 06:06:47,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:47,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:47,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:47,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:47,257 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:06:47,881 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:06:48,137 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-10-13 06:06:48,510 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-10-13 06:06:48,799 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-13 06:06:49,132 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:06:49,465 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2020-10-13 06:06:49,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:49,731 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:06:49,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:49,740 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 292 [2020-10-13 06:06:49,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:49,742 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:06:49,742 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:06:49,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:06:49,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:06:49,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:06:49,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:06:49,758 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 292 [2020-10-13 06:06:49,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:49,759 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:06:49,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:49,759 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:06:49,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-13 06:06:49,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:49,762 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:49,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:06:49,762 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:49,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:49,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1208730127, now seen corresponding path program 1 times [2020-10-13 06:06:49,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:49,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102072668] [2020-10-13 06:06:49,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:49,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-13 06:06:50,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:50,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-13 06:06:50,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:50,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:06:50,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:06:50,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:50,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:50,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:50,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:06:50,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:50,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:06:50,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:50,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:50,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:50,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:50,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:50,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:06:50,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:06:50,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:06:50,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,862 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:06:50,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102072668] [2020-10-13 06:06:50,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:50,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:50,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620651767] [2020-10-13 06:06:50,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:50,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:50,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:50,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:50,864 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:06:51,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:51,691 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:06:51,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:51,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 301 [2020-10-13 06:06:51,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:51,695 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:06:51,695 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:06:51,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:06:51,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:06:51,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:06:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:06:51,708 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 301 [2020-10-13 06:06:51,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:51,708 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:06:51,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:51,709 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:06:51,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-13 06:06:51,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:51,711 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:51,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:06:51,712 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:51,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:51,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1387391118, now seen corresponding path program 1 times [2020-10-13 06:06:51,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:51,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483153497] [2020-10-13 06:06:51,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:51,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:51,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:52,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-13 06:06:52,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:52,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-13 06:06:52,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:06:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:06:52,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:52,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:52,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:52,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:52,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:52,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:52,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:52,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:52,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:52,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:52,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:52,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:52,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:52,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:52,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:52,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:52,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:52,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:52,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:52,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:52,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:52,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:52,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:52,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:52,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:52,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:52,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:52,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:52,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:52,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:52,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:52,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:52,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:52,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:52,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:52,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:52,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:52,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:52,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:52,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:52,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:06:52,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:52,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:52,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:52,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:52,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:06:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:52,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:52,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:06:52,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:52,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:06:52,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:06:52,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:06:52,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483153497] [2020-10-13 06:06:52,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:52,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:52,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569948323] [2020-10-13 06:06:52,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:52,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:52,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:52,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:52,571 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 5 states. [2020-10-13 06:06:53,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:53,393 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:06:53,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:53,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-10-13 06:06:53,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:53,398 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:06:53,398 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:06:53,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:53,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:06:53,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:06:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:06:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:06:53,412 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 306 [2020-10-13 06:06:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:53,413 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:06:53,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:06:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-13 06:06:53,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:53,416 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 06:06:53,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:06:53,416 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:53,416 INFO L82 PathProgramCache]: Analyzing trace with hash -2049990210, now seen corresponding path program 1 times [2020-10-13 06:06:53,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:53,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536614250] [2020-10-13 06:06:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:53,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:54,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-13 06:06:55,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:55,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1729 [2020-10-13 06:06:55,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:55,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:06:55,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:06:55,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:55,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:55,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:55,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:55,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:55,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:55,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:06:55,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:55,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:55,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:55,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:55,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:55,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:55,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:55,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:06:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:06:55,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:06:55,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:06:55,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:56,048 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:06:56,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536614250] [2020-10-13 06:06:56,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:56,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:06:56,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335151069] [2020-10-13 06:06:56,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:06:56,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:56,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:06:56,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:06:56,050 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 14 states. [2020-10-13 06:06:56,561 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-13 06:06:56,768 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-13 06:06:57,034 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-13 06:06:57,271 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-13 06:06:57,511 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 06:06:57,721 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-13 06:06:58,079 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-13 06:06:58,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:58,405 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:06:58,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:06:58,406 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 312 [2020-10-13 06:06:58,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:58,408 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:06:58,409 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:06:58,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:06:58,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:06:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:06:58,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:06:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:06:58,423 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 312 [2020-10-13 06:06:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:58,423 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:06:58,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:06:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:06:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-13 06:06:58,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:58,426 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:06:58,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:06:58,426 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:58,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:58,427 INFO L82 PathProgramCache]: Analyzing trace with hash -2037421029, now seen corresponding path program 1 times [2020-10-13 06:06:58,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:58,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361513037] [2020-10-13 06:06:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:58,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:58,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:58,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:59,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-13 06:07:00,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:00,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2153 [2020-10-13 06:07:00,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:07:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:07:00,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:00,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:00,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:00,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:00,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:00,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:00,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:00,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:00,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:00,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:00,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:00,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:00,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:00,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:00,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:00,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:00,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:00,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:00,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:00,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:00,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:00,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:00,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:00,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:00,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:00,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:00,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:00,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:07:00,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:00,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:00,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:07:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:07:00,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:00,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:07:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:07:01,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361513037] [2020-10-13 06:07:01,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:01,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:07:01,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545248588] [2020-10-13 06:07:01,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:07:01,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:01,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:07:01,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:01,057 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 6 states. [2020-10-13 06:07:01,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:01,894 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:07:01,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:01,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 317 [2020-10-13 06:07:01,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:01,898 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:07:01,899 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:07:01,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:01,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:07:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:07:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:07:01,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:07:01,914 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 317 [2020-10-13 06:07:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:01,914 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:07:01,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:07:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:07:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-13 06:07:01,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:01,917 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:01,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:07:01,918 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:01,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:01,918 INFO L82 PathProgramCache]: Analyzing trace with hash -561472713, now seen corresponding path program 1 times [2020-10-13 06:07:01,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:01,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995012804] [2020-10-13 06:07:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:02,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:02,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-13 06:07:02,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:02,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650 [2020-10-13 06:07:02,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:07:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:07:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:02,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:02,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:02,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:02,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:02,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:02,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:02,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:02,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:02,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:02,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:02,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:02,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:02,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:02,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:02,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:02,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:02,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:02,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:02,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:02,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:02,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:02,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:02,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:02,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:02,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:02,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:02,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:02,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:02,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:02,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:07:02,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:02,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:07:02,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:02,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:02,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:02,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:07:02,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:07:03,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995012804] [2020-10-13 06:07:03,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:03,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:03,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222539700] [2020-10-13 06:07:03,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:03,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:03,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:03,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:03,183 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:07:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:03,998 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:07:03,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:03,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 321 [2020-10-13 06:07:04,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:04,002 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:07:04,002 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:07:04,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:04,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:07:04,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:07:04,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:07:04,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:07:04,020 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 321 [2020-10-13 06:07:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:04,020 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:07:04,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:07:04,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-13 06:07:04,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:04,024 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-10-13 06:07:04,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:07:04,025 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:04,025 INFO L82 PathProgramCache]: Analyzing trace with hash -388228265, now seen corresponding path program 1 times [2020-10-13 06:07:04,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:04,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111082474] [2020-10-13 06:07:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:04,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:04,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:04,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:06,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-10-13 06:07:06,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2160 [2020-10-13 06:07:06,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:07:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:07:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:06,639 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-10-13 06:07:06,760 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-10-13 06:07:06,939 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2020-10-13 06:07:07,115 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 42 [2020-10-13 06:07:07,292 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 40 [2020-10-13 06:07:07,461 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 39 [2020-10-13 06:07:07,630 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 36 [2020-10-13 06:07:07,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:07,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:07,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:07,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:07,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:07,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:07,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:07,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:07,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:07,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:07,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:07,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:07,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:07,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:07,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:07,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:07,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:07,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:07,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:07,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:07,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:07,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:07,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:07,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:07,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:07,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:07,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:07,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:07,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:07,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:07,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:07,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:07,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:07,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:07,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:07,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:07,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:07,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:07:07,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:07,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:07,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:07,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:07,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:07,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:07,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:07,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:07:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:07,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:07,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:07:07,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:07,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:07,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:07,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:07:07,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:07:08,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111082474] [2020-10-13 06:07:08,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:08,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:08,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140849535] [2020-10-13 06:07:08,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:08,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:08,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:08,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:08,083 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:07:08,867 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:07:09,131 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2020-10-13 06:07:09,410 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-13 06:07:09,661 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-10-13 06:07:10,024 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-13 06:07:10,339 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:07:10,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:10,813 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:07:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:10,814 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 330 [2020-10-13 06:07:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:10,816 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:07:10,816 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:07:10,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:07:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:07:10,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:07:10,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:07:10,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:07:10,830 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 330 [2020-10-13 06:07:10,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:10,831 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:07:10,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:10,831 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:07:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-13 06:07:10,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:10,834 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-13 06:07:10,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:07:10,835 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:10,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1556497788, now seen corresponding path program 1 times [2020-10-13 06:07:10,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:10,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486742807] [2020-10-13 06:07:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:10,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-13 06:07:11,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:11,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-10-13 06:07:11,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:07:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:07:11,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:11,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:11,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:11,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:11,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:11,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:11,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:11,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:11,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:11,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:11,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:07:11,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:07:11,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:11,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:07:11,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:07:12,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486742807] [2020-10-13 06:07:12,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:12,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:12,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892112377] [2020-10-13 06:07:12,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:12,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:12,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:12,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:12,007 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:07:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:12,882 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:07:12,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:12,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2020-10-13 06:07:12,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:12,886 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:07:12,886 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:07:12,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:12,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:07:12,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:07:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:07:12,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:07:12,899 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 333 [2020-10-13 06:07:12,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:12,899 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:07:12,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:07:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-13 06:07:12,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:12,903 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 06:07:12,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:07:12,903 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:12,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:12,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1911144977, now seen corresponding path program 1 times [2020-10-13 06:07:12,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:12,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132625074] [2020-10-13 06:07:12,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:12,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 355 [2020-10-13 06:07:15,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:15,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2779 [2020-10-13 06:07:15,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:07:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:07:15,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,958 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-10-13 06:07:16,082 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-10-13 06:07:16,260 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:07:16,408 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:07:16,549 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 06:07:16,677 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-10-13 06:07:16,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:16,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:16,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:16,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:16,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:16,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:16,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:16,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:17,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:07:17,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:17,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:07:17,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:17,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:17,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:17,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:17,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:07:17,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:17,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:07:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:07:17,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:07:17,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:07:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:07:17,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132625074] [2020-10-13 06:07:17,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:17,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:17,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038361313] [2020-10-13 06:07:17,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:17,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:17,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:17,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:17,492 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:07:18,291 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:07:18,661 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:07:19,002 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:07:19,352 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:07:19,618 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:07:19,929 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:07:20,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:20,306 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:07:20,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:20,307 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 335 [2020-10-13 06:07:20,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:20,310 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:07:20,310 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:07:20,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:20,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:07:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:07:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:07:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:07:20,325 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 335 [2020-10-13 06:07:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:20,325 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:07:20,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:07:20,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-13 06:07:20,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:20,328 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:07:20,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:07:20,329 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:20,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:20,329 INFO L82 PathProgramCache]: Analyzing trace with hash -715310365, now seen corresponding path program 1 times [2020-10-13 06:07:20,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:20,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960997663] [2020-10-13 06:07:20,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:20,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:20,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:20,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-13 06:07:22,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2030 [2020-10-13 06:07:22,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:07:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:07:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:22,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:22,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:22,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:22,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:22,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:22,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:22,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:22,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:22,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:22,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:07:22,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:22,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:07:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:07:22,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:07:22,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:07:22,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,834 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:07:22,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960997663] [2020-10-13 06:07:22,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:22,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:22,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262387850] [2020-10-13 06:07:22,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:22,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:22,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:22,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:22,836 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 5 states. [2020-10-13 06:07:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:23,667 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:07:23,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:23,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 336 [2020-10-13 06:07:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:23,671 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:07:23,671 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:07:23,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:07:23,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:07:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:07:23,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:07:23,716 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 336 [2020-10-13 06:07:23,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:23,717 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:07:23,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:23,717 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:07:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-13 06:07:23,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:23,721 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-13 06:07:23,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:07:23,722 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:23,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:23,722 INFO L82 PathProgramCache]: Analyzing trace with hash -576986040, now seen corresponding path program 1 times [2020-10-13 06:07:23,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:23,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426112242] [2020-10-13 06:07:23,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:23,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:23,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:24,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:24,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:24,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-13 06:07:24,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:24,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-10-13 06:07:24,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:24,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:24,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:07:24,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:07:24,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:24,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:24,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:24,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:24,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:24,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:24,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:24,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:24,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:25,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:25,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:25,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:25,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:25,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:25,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:25,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:25,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:25,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:25,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:25,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:25,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:25,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:25,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:25,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:25,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:25,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:25,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:25,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:25,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:07:25,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:25,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:07:25,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:07:25,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,347 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:07:25,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426112242] [2020-10-13 06:07:25,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:25,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:07:25,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141942324] [2020-10-13 06:07:25,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:07:25,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:25,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:07:25,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:25,349 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 6 states. [2020-10-13 06:07:26,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:26,246 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:07:26,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:26,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 335 [2020-10-13 06:07:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:26,250 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:07:26,250 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:07:26,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:26,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:07:26,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:07:26,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:07:26,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:07:26,263 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 335 [2020-10-13 06:07:26,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:26,263 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:07:26,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:07:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:07:26,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-13 06:07:26,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:26,266 INFO L422 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 06:07:26,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:07:26,267 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:26,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:26,267 INFO L82 PathProgramCache]: Analyzing trace with hash 733672603, now seen corresponding path program 1 times [2020-10-13 06:07:26,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:26,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205496020] [2020-10-13 06:07:26,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:26,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:26,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:26,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:26,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-13 06:07:28,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:28,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1893 [2020-10-13 06:07:28,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:07:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:07:28,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:28,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:28,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:28,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:28,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:28,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:28,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:28,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:28,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:28,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:07:28,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:28,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:07:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:07:28,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 06:07:28,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:07:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,843 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:07:28,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205496020] [2020-10-13 06:07:28,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:28,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:07:28,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353746947] [2020-10-13 06:07:28,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:07:28,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:28,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:07:28,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:28,845 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 7 states. [2020-10-13 06:07:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:29,520 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:07:29,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:29,521 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 357 [2020-10-13 06:07:29,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:29,522 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:07:29,522 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:07:29,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:07:29,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:07:29,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:07:29,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:07:29,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:07:29,525 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 357 [2020-10-13 06:07:29,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:29,525 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:07:29,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:07:29,525 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:07:29,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:07:29,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:07:29,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:07:30,229 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 199 [2020-10-13 06:07:30,362 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 172 [2020-10-13 06:07:35,150 WARN L193 SmtUtils]: Spent 4.68 s on a formula simplification. DAG size of input: 370 DAG size of output: 286 [2020-10-13 06:07:37,006 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 200 DAG size of output: 162 [2020-10-13 06:07:39,029 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 172 DAG size of output: 125 [2020-10-13 06:07:39,034 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:07:39,035 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:07:39,035 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:07:39,035 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:07:39,036 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:07:39,036 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,036 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,036 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,036 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,037 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,037 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,037 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:07:39,037 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:07:39,038 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:07:39,038 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:07:39,038 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:07:39,038 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:07:39,038 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:07:39,038 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,039 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:07:39,040 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 521) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,041 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:07:39,042 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:07:39,043 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:07:39,044 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:07:39,045 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,046 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:07:39,047 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,048 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:07:39,049 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:07:39,050 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:07:39,051 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:07:39,051 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:07:39,051 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:07:39,051 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:07:39,051 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:07:39,052 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse67 (= |old(~a21~0)| 1)) (.cse38 (= ~a8~0 13)) (.cse40 (= ~a7~0 0)) (.cse37 (= |old(~a17~0)| 1)) (.cse36 (= |old(~a20~0)| 1)) (.cse27 (= |old(~a7~0)| 1)) (.cse39 (= 5 ~a16~0)) (.cse1 (not (<= |old(~a7~0)| 0))) (.cse4 (= ~a7~0 |old(~a7~0)|)) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse22 (= ~a21~0 1)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse24 (= ~a8~0 15)) (.cse9 (= ~a16~0 4))) (let ((.cse21 (not (= 6 |old(~a16~0)|))) (.cse16 (and .cse4 .cse5 .cse22 .cse6 .cse24 .cse9)) (.cse61 (< 12 ~a8~0)) (.cse65 (<= ~a8~0 13)) (.cse51 (not (< 0 |old(~a7~0)|))) (.cse57 (not (< 12 |old(~a8~0)|))) (.cse30 (not (<= 5 |old(~a16~0)|))) (.cse31 (not (<= 14 |old(~a8~0)|))) (.cse32 (not (<= |old(~a16~0)| 5))) (.cse23 (= ~a16~0 |old(~a16~0)|)) (.cse34 (not (<= |old(~a8~0)| 14))) (.cse29 (not (<= |old(~a20~0)| 0))) (.cse70 (<= 1 ~a7~0)) (.cse63 (<= ~a16~0 4)) (.cse33 (= ~a8~0 |old(~a8~0)|)) (.cse64 (<= 4 ~a16~0)) (.cse71 (<= ~a7~0 1)) (.cse54 (not (<= |old(~a7~0)| 1))) (.cse55 (not (<= |old(~a16~0)| 4))) (.cse56 (not (<= |old(~a17~0)| 1))) (.cse52 (not (<= 4 |old(~a16~0)|))) (.cse72 (not (<= 1 |old(~a7~0)|))) (.cse53 (not (<= |old(~a8~0)| 13))) (.cse45 (not (<= |old(~a17~0)| |old(~a20~0)|))) (.cse46 (and .cse1 (not (<= 2 |old(~a7~0)|)))) (.cse12 (not (<= |old(~a17~0)| 0))) (.cse48 (not (<= |old(~a8~0)| 15))) (.cse2 (not (<= |old(~a21~0)| 1))) (.cse44 (not (<= |old(~a20~0)| 1))) (.cse47 (not (<= |old(~a16~0)| 6))) (.cse49 (not (< 5 |old(~a16~0)|))) (.cse15 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse8 (<= ~a21~0 1)) (.cse10 (<= 1 ~a21~0)) (.cse59 (<= ~a8~0 15)) (.cse60 (<= 15 ~a8~0)) (.cse50 (not (<= 15 |old(~a8~0)|))) (.cse3 (not (<= 1 |old(~a21~0)|))) (.cse58 (not (< 0 |old(~a20~0)|))) (.cse66 (and .cse4 .cse5 .cse22 .cse6 .cse24 .cse39)) (.cse41 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse28 (not .cse27)) (.cse42 (not (= 5 |old(~a16~0)|))) (.cse17 (not (= 15 |old(~a8~0)|))) (.cse19 (not (= 0 |old(~a17~0)|))) (.cse0 (not (= 14 |old(~a8~0)|))) (.cse11 (not .cse36)) (.cse7 (= 14 ~a8~0)) (.cse20 (not .cse37)) (.cse25 (not (= 0 |old(~a20~0)|))) (.cse62 (= ~a21~0 |old(~a21~0)|)) (.cse68 (= ~a17~0 ~a7~0)) (.cse26 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse35 (not (= |old(~a8~0)| 13))) (.cse73 (and .cse5 .cse22 .cse6 .cse38 .cse9 .cse40)) (.cse69 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse18 (not .cse67)) (.cse13 (not (= ~a12~0 8))) (.cse43 (not (= |old(~a7~0)| 0))) (.cse14 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) .cse11 .cse12 .cse13 .cse14) (or .cse15 .cse11 .cse16 (and (not (< |old(~a20~0)| |old(~a7~0)|)) (not (<= (+ |old(~a7~0)| 1) |old(~a20~0)|))) .cse17 .cse18 .cse13 .cse14 .cse19) (or .cse20 .cse21 (and .cse4 .cse5 .cse22 .cse6 .cse23 .cse24) .cse25 .cse26 .cse17 .cse18 .cse13 .cse27) (or .cse28 .cse12 .cse16 .cse17 .cse18 .cse13 .cse29 .cse14) (or .cse30 .cse31 .cse1 .cse2 .cse32 .cse3 (and .cse4 .cse5 .cse6 .cse23 .cse33 .cse8 .cse10) .cse34 .cse12 .cse13 .cse29) (or .cse35 .cse36 .cse37 .cse18 (and .cse4 .cse5 .cse22 .cse6 .cse38 .cse9) .cse13 .cse14 .cse27) (or .cse20 .cse36 .cse16 .cse26 .cse17 .cse18 .cse13 .cse14 .cse27) (or (and .cse5 .cse6 .cse24 (= ~a21~0 ~a20~0) .cse39 .cse40) .cse15 .cse41 .cse3 (not (= |old(~a20~0)| |old(~a21~0)|)) .cse42 .cse17 .cse13 .cse43 .cse44) (or .cse35 .cse20 (and .cse4 .cse5 .cse6 .cse23 .cse38 .cse8 .cse10) .cse1 .cse2 .cse3 .cse21 .cse45 .cse13 .cse44) (or (and (or .cse46 (and (not (<= 2 |old(~a20~0)|)) .cse29) .cse47 .cse48 .cse49 .cse2 .cse15 .cse50 .cse3 .cse12 .cse13) (or .cse51 .cse52 (not (< 0 |old(~a17~0)|)) .cse53 .cse54 .cse55 .cse56 .cse57 .cse26 .cse13 .cse44 .cse58)) (and .cse4 .cse5 .cse6 .cse23 .cse8 .cse10 .cse59 (or (<= 2 ~a20~0) (<= ~a20~0 0)) .cse60) (and .cse4 .cse5 .cse61 .cse62 .cse6 .cse63 .cse64 (<= ~a20~0 1) (< 0 ~a20~0) .cse65)) (or .cse66 .cse42 .cse26 .cse17 .cse18 .cse13 .cse27 .cse19) (or .cse35 .cse15 (and .cse4 .cse5 .cse62 .cse6 .cse23 .cse38) .cse28 .cse21 .cse11 .cse67 .cse13 .cse19) (or .cse46 .cse30 .cse48 .cse2 .cse12 .cse44 .cse15 .cse32 .cse50 .cse3 (and .cse4 .cse5 .cse6 .cse23 .cse8 .cse10 .cse59 .cse60) .cse13 .cse58) (or .cse0 .cse28 .cse11 (and .cse4 .cse5 .cse22 .cse6 .cse7 .cse39) .cse42 .cse18 .cse13 .cse19) (or .cse15 .cse41 .cse16 .cse17 .cse18 .cse13 .cse14 .cse19) (or .cse35 .cse20 (not (= 0 |old(~a21~0)|)) (and .cse4 .cse5 .cse6 .cse38 (= ~a21~0 0) .cse39) .cse28 .cse11 .cse42 .cse26 .cse13) (or (and .cse5 .cse22 .cse6 .cse7 .cse9 .cse68) .cse0 .cse69 .cse41 .cse18 .cse13 .cse14 .cse19) (or (and .cse4 .cse5 .cse61 .cse62 .cse6 .cse63 .cse64 .cse65) (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) .cse55 .cse54 .cse12 .cse44 .cse51 .cse52 .cse53 .cse57 .cse26 .cse13 .cse58) (or .cse30 .cse31 .cse2 .cse32 (and .cse70 .cse5 .cse6 .cse23 .cse33 .cse8 .cse10 .cse71) .cse72 .cse3 .cse54 .cse34 .cse12 .cse13 .cse29) (or .cse2 (not (<= 1 |old(~a17~0)|)) (and .cse70 .cse5 .cse6 .cse63 .cse33 .cse64 .cse8 .cse10 .cse71) .cse54 .cse55 (not (<= 13 |old(~a8~0)|)) .cse56 (not (<= 1 |old(~a20~0)|)) .cse44 .cse52 .cse72 .cse3 .cse53 .cse13) (or (not (<= |old(~a20~0)| |old(~a17~0)|)) (and .cse4 .cse6 .cse7 (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) .cse8 .cse9 (< ~a7~0 (+ ~a21~0 1))) .cse0 .cse2 (not (< |old(~a7~0)| (+ |old(~a21~0)| 1))) .cse28 .cse12 .cse45 .cse13 .cse14) (or .cse35 .cse20 .cse73 .cse11 .cse18 .cse13 .cse43 .cse14) (or .cse20 .cse36 (and .cse4 .cse6 .cse22 .cse24 .cse39 (= ~a17~0 1)) .cse42 .cse26 .cse17 .cse18 .cse13 .cse27) (or .cse46 (and (not (<= 2 |old(~a17~0)|)) .cse12) .cse48 .cse2 .cse44 .cse47 .cse49 .cse15 (and .cse5 .cse4 (<= ~a16~0 6) .cse6 (< 5 ~a16~0) .cse8 .cse10 .cse59 .cse60) .cse50 .cse3 .cse13 .cse58) (or .cse66 .cse41 .cse28 .cse42 .cse17 .cse18 .cse13 .cse19) (or .cse20 .cse0 .cse11 (and .cse5 .cse22 .cse6 .cse7 .cse9 .cse40) .cse18 .cse13 .cse43 .cse14) (or .cse35 .cse20 .cse69 .cse25 (and .cse5 .cse62 .cse6 .cse38 .cse9 .cse68) .cse67 .cse26 .cse13 .cse14) (or .cse35 .cse73 .cse69 .cse18 .cse13 .cse43 .cse14)))) [2020-10-13 06:07:39,052 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:07:39,052 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,052 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,052 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,052 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:07:39,053 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:07:39,054 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:07:39,055 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:07:39,056 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:07:39,056 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:07:39,056 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:07:39,056 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:07:39,056 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:07:39,056 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:07:39,056 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a20~0 ~a17~0) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0)) [2020-10-13 06:07:39,056 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:07:39,056 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:07:39,056 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| |old(~a20~0)|)) (not (= |old(~a20~0)| 1)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:07:39,056 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:07:39,057 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse42 (= 5 main_~input~0)) (.cse43 (= 6 main_~input~0)) (.cse44 (= 3 main_~input~0)) (.cse45 (= 2 main_~input~0)) (.cse30 (= ~a7~0 1)) (.cse23 (= ~a21~0 1)) (.cse14 (= ~a20~0 1)) (.cse13 (<= ~a7~0 0))) (let ((.cse33 (<= ~a16~0 5)) (.cse12 (<= ~a17~0 0)) (.cse34 (<= 5 ~a16~0)) (.cse38 (<= ~a20~0 0)) (.cse22 (= ~a20~0 0)) (.cse16 (<= ~a16~0 6)) (.cse17 (<= 6 ~a16~0)) (.cse19 (or (< 1 ~a7~0) .cse13)) (.cse20 (<= ~a8~0 15)) (.cse21 (<= 15 ~a8~0)) (.cse36 (not .cse14)) (.cse18 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse41 (not .cse23)) (.cse29 (= ~a20~0 ~a17~0)) (.cse39 (= ~a17~0 ~a7~0)) (.cse11 (= 14 ~a8~0)) (.cse15 (= ~a16~0 4)) (.cse40 (= ~a7~0 0)) (.cse26 (= ~a8~0 15)) (.cse27 (not .cse30)) (.cse32 (= ~a17~0 0)) (.cse0 (<= 1 ~a7~0)) (.cse1 (<= 13 ~a8~0)) (.cse2 (<= 1 ~a20~0)) (.cse3 (<= ~a16~0 4)) (.cse4 (<= 4 ~a16~0)) (.cse5 (<= ~a17~0 1)) (.cse9 (<= ~a7~0 1)) (.cse10 (<= ~a8~0 13)) (.cse24 (= ~a16~0 6)) (.cse37 (<= ~a17~0 ~a20~0)) (.cse6 (<= ~a21~0 1)) (.cse7 (<= ~a20~0 1)) (.cse8 (<= 1 ~a21~0)) (.cse25 (or .cse42 .cse43 (= main_~input~0 4) .cse44 (= main_~input~0 1) .cse45)) (.cse35 (= ~a8~0 13)) (.cse31 (= 5 ~a16~0)) (.cse28 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~a17~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse11 .cse12 .cse13 .cse14 .cse15 .cse6 .cse8) (and .cse16 .cse17 .cse18 .cse12 .cse19 .cse6 .cse8 .cse20 .cse21) (not (= |old(~a17~0)| |old(~a20~0)|)) (not (= |old(~a20~0)| 1)) (and .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28) (and .cse29 .cse23 .cse30 .cse26 .cse31 .cse32) (and .cse2 .cse33 .cse18 .cse12 .cse19 .cse6 .cse7 .cse8 .cse34 .cse20 .cse21) (and .cse23 (not .cse28) .cse35 .cse15 .cse27 .cse36) (and .cse30 .cse11 (<= ~a20~0 ~a17~0) .cse37 .cse12 .cse15 .cse6 (< ~a7~0 (+ ~a21~0 1))) (and .cse23 .cse30 .cse12 .cse26 .cse15 .cse38) (and (<= 14 ~a8~0) (<= ~a8~0 14) .cse33 .cse12 .cse6 .cse8 .cse34 .cse9 .cse38) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse23 .cse35 .cse15 .cse39 .cse40) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse22 .cse25 .cse41 .cse35 .cse15 .cse39 .cse28) (and .cse16 .cse2 .cse17 .cse18 .cse19 .cse6 .cse7 .cse8 .cse20 (< 1 ~a17~0) .cse21) (and .cse23 .cse18 .cse26 .cse14 .cse15 (not (= ~a20~0 ~a7~0)) .cse32) (and (= ~a21~0 ~a17~0) (not .cse29) (not .cse39) .cse26 .cse15 (or .cse42 .cse43 (and (<= ~a17~0 main_~input~0) (<= main_~input~0 ~a17~0)) .cse44 (and (< main_~input~0 (+ ~a16~0 1)) (<= ~a16~0 main_~input~0)) .cse45) .cse28) (and .cse23 .cse30 .cse11 .cse14 .cse31 .cse32) (and .cse23 .cse25 .cse26 .cse27 .cse31 .cse36 .cse28) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) .cse18 .cse26 (= ~a21~0 ~a20~0) .cse31 .cse40) (and .cse23 .cse35 .cse14 .cse15 .cse40 .cse28) (and .cse29 .cse23 .cse18 .cse26 .cse15 .cse32) (and .cse30 .cse24 .cse18 .cse41 .cse35 .cse14 .cse32) (and .cse29 .cse23 .cse11 .cse15 .cse39 .cse32) (and .cse23 .cse11 .cse14 .cse15 .cse40 .cse28) (and .cse23 .cse25 .cse26 .cse27 .cse31 .cse32) (and .cse0 .cse1 .cse2 .cse25 .cse3 .cse4 .cse5 .cse7 .cse9 (or (< 1 ~a21~0) (<= ~a21~0 0)) .cse10) (and .cse24 .cse37 .cse13 .cse35 .cse6 .cse7 .cse8 .cse28) (and .cse30 .cse25 .cse35 (= ~a21~0 0) .cse14 .cse31 .cse28)))) [2020-10-13 06:07:39,057 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:07:39,057 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:07:39,057 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse7 (<= ~a7~0 0)) (.cse2 (= ~a20~0 1)) (.cse0 (= ~a7~0 1)) (.cse21 (= ~a21~0 1))) (let ((.cse27 (<= ~a20~0 0)) (.cse11 (<= ~a16~0 6)) (.cse13 (<= 6 ~a16~0)) (.cse19 (not .cse21)) (.cse18 (= ~a20~0 0)) (.cse32 (<= 1 ~a7~0)) (.cse33 (<= 13 ~a8~0)) (.cse34 (<= ~a16~0 4)) (.cse35 (<= 4 ~a16~0)) (.cse36 (<= ~a17~0 1)) (.cse31 (<= ~a7~0 1)) (.cse37 (<= ~a8~0 13)) (.cse25 (= ~a8~0 15)) (.cse22 (not .cse0)) (.cse3 (= 5 ~a16~0)) (.cse23 (not .cse2)) (.cse12 (<= 1 ~a20~0)) (.cse29 (<= ~a16~0 5)) (.cse6 (<= ~a17~0 0)) (.cse14 (or (< 1 ~a7~0) .cse7)) (.cse30 (<= 5 ~a16~0)) (.cse16 (<= ~a8~0 15)) (.cse17 (<= 15 ~a8~0)) (.cse38 (= ~a20~0 ~a17~0)) (.cse20 (= ~a17~0 ~a7~0)) (.cse26 (= ~a17~0 0)) (.cse5 (= 14 ~a8~0)) (.cse8 (= ~a16~0 4)) (.cse28 (= ~a7~0 0)) (.cse39 (= ~a16~0 6)) (.cse24 (<= ~a17~0 ~a20~0)) (.cse1 (= ~a8~0 13)) (.cse9 (<= ~a21~0 1)) (.cse15 (<= ~a20~0 1)) (.cse10 (<= 1 ~a21~0)) (.cse4 (= ~a17~0 1))) (or (and .cse0 .cse1 (= ~a21~0 0) .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse2 .cse8 .cse9 .cse10) (and .cse11 .cse12 .cse13 .cse14 .cse9 .cse15 .cse10 .cse16 (< 1 ~a17~0) .cse17) (not (= |old(~a17~0)| |old(~a20~0)|)) (and .cse18 .cse19 .cse1 .cse8 .cse20 .cse4) (not (= |old(~a20~0)| 1)) (and .cse21 (not .cse4) .cse1 .cse8 .cse22 .cse23) (and .cse0 .cse5 (<= ~a20~0 ~a17~0) .cse24 .cse6 .cse8 .cse9 (< ~a7~0 (+ ~a21~0 1))) (and .cse21 .cse25 .cse22 .cse3 .cse26) (and .cse21 .cse0 .cse6 .cse25 .cse8 .cse27) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) .cse25 (= ~a21~0 ~a20~0) .cse3 .cse28) (and (<= 14 ~a8~0) (<= ~a8~0 14) .cse29 .cse6 .cse9 .cse10 .cse30 .cse31 .cse27) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse21 .cse1 .cse8 .cse20 .cse28) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse11 .cse13 .cse6 .cse14 .cse9 .cse10 .cse16 .cse17) (and .cse32 .cse33 .cse12 (<= 1 ~a17~0) .cse34 .cse35 .cse36 .cse15 .cse31 .cse37) (and .cse21 .cse25 .cse2 .cse8 (not (= ~a20~0 ~a7~0)) .cse26) (and .cse21 .cse0 .cse5 .cse2 .cse3 .cse26) (and .cse38 .cse21 .cse25 .cse8 .cse26) (and .cse0 .cse39 .cse19 .cse1 .cse2 .cse26) (and .cse18 .cse21 .cse39 .cse25 .cse22 .cse4) (and .cse38 .cse21 .cse25 .cse3 .cse26) (and .cse32 .cse33 .cse12 .cse34 .cse35 .cse15 .cse36 .cse31 (or (< 1 ~a21~0) (<= ~a21~0 0)) .cse37) (and (= ~a21~0 ~a17~0) (not .cse38) (not .cse20) .cse25 .cse8 .cse4) (and .cse21 .cse1 .cse2 .cse8 .cse28 .cse4) (and .cse21 .cse25 .cse22 .cse3 .cse23 .cse4) (and .cse12 .cse29 .cse6 .cse14 .cse9 .cse15 .cse10 .cse30 .cse16 .cse17) (and .cse38 .cse21 .cse5 .cse8 .cse20 .cse26) (and .cse21 .cse5 .cse2 .cse8 .cse28 .cse4) (and .cse39 .cse24 .cse7 .cse1 .cse9 .cse15 .cse10 .cse4)))) [2020-10-13 06:07:39,057 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:07:39,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:07:39 BoogieIcfgContainer [2020-10-13 06:07:39,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:07:39,095 INFO L168 Benchmark]: Toolchain (without parser) took 165329.63 ms. Allocated memory was 144.7 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 99.2 MB in the beginning and 756.8 MB in the end (delta: -657.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:07:39,095 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:07:39,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.73 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 99.0 MB in the beginning and 166.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:07:39,096 INFO L168 Benchmark]: Boogie Preprocessor took 126.81 ms. Allocated memory is still 203.4 MB. Free memory was 166.7 MB in the beginning and 161.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:07:39,097 INFO L168 Benchmark]: RCFGBuilder took 1293.11 ms. Allocated memory was 203.4 MB in the beginning and 232.8 MB in the end (delta: 29.4 MB). Free memory was 161.5 MB in the beginning and 176.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:07:39,097 INFO L168 Benchmark]: TraceAbstraction took 163104.74 ms. Allocated memory was 232.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 176.5 MB in the beginning and 756.8 MB in the end (delta: -580.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:07:39,099 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 799.73 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 99.0 MB in the beginning and 166.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.81 ms. Allocated memory is still 203.4 MB. Free memory was 166.7 MB in the beginning and 161.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1293.11 ms. Allocated memory was 203.4 MB in the beginning and 232.8 MB in the end (delta: 29.4 MB). Free memory was 161.5 MB in the beginning and 176.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 163104.74 ms. Allocated memory was 232.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 176.5 MB in the beginning and 756.8 MB in the end (delta: -580.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 521]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((a7 == 1 && a8 == 13) && a21 == 0) && a20 == 1) && 5 == a16) && a17 == 1) || ((((((14 == a8 && a17 <= 0) && a7 <= 0) && a20 == 1) && a16 == 4) && a21 <= 1) && 1 <= a21)) || (((((((((a16 <= 6 && 1 <= a20) && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a8 <= 15) && 1 < a17) && 15 <= a8)) || !(\old(a17) == \old(a20))) || (((((a20 == 0 && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == a7) && a17 == 1)) || !(\old(a20) == 1)) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || (((((((a7 == 1 && 14 == a8) && a20 <= a17) && a17 <= a20) && a17 <= 0) && a16 == 4) && a21 <= 1) && a7 < a21 + 1)) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a7 == 1) && a17 <= 0) && a8 == 15) && a16 == 4) && a20 <= 0)) || (((((a17 == \old(a17) && a20 == \old(a20)) && a8 == 15) && a21 == a20) && 5 == a16) && a7 == 0)) || ((((((((14 <= a8 && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a7 <= 1) && a20 <= 0)) || !(\old(a20) == \old(a21))) || !(5 == \old(a16))) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a7 == 0)) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8)) || (((((((a16 <= 6 && 6 <= a16) && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a20 <= 1) && a7 <= 1) && a8 <= 13)) || (((((a21 == 1 && a8 == 15) && a20 == 1) && a16 == 4) && !(a20 == a7)) && a17 == 0)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || (((((a7 == 1 && a16 == 6) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a17 == 0)) || (((((a20 == 0 && a21 == 1) && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && 5 == a16) && a17 == 0)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && a16 <= 4) && 4 <= a16) && a20 <= 1) && a17 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || (((((a21 == a17 && !(a20 == a17)) && !(a17 == a7)) && a8 == 15) && a16 == 4) && a17 == 1)) || (((((a21 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1)) && a17 == 1)) || (((((((((1 <= a20 && a16 <= 5) && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || (((((a20 == a17 && a21 == 1) && 14 == a8) && a16 == 4) && a17 == a7) && a17 == 0)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((((a16 == 6 && a17 <= a20) && a7 <= 0) && a8 == 13) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 153.4s, OverallIterations: 31, TraceHistogramMax: 7, AutomataDifference: 62.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 795 SDtfs, 9668 SDslu, 1175 SDs, 0 SdLazy, 22780 SolverSat, 1280 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 776 GetRequests, 347 SyntacticMatches, 25 SemanticMatches, 404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 46.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 224 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 262 NumberOfFragments, 4084 HoareAnnotationTreeSize, 206 FomulaSimplifications, 1325 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3634 FormulaSimplificationTreeSizeReductionInter, 8.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 82.2s InterpolantComputationTime, 7877 NumberOfCodeBlocks, 7877 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 7846 ConstructedInterpolants, 0 QuantifiedInterpolants, 21035375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 8178/8288 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...