/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_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:06:37,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:06:37,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:06:37,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:06:37,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:06:37,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:06:37,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:06:37,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:06:37,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:06:37,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:06:37,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:06:37,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:06:37,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:06:37,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:06:37,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:06:37,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:06:37,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:06:37,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:06:37,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:06:37,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:06:37,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:06:37,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:06:37,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:06:37,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:06:37,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:06:37,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:06:37,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:06:37,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:06:37,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:06:37,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:06:37,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:06:37,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:06:37,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:06:37,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:06:37,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:06:37,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:06:37,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:06:37,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:06:37,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:06:37,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:06:37,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:06:37,525 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 06:06:37,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:06:37,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:06:37,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:06:37,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:06:37,550 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:06:37,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:06:37,550 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:06:37,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:06:37,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:06:37,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:06:37,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:06:37,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:06:37,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:06:37,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:06:37,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:06:37,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:06:37,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:06:37,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:06:37,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:06:37,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:06:37,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:06:37,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:06:37,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:06:37,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:06:37,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:06:37,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:06:37,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:06:37,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:06:37,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:06:37,555 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 06:06:37,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:06:37,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:06:37,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:06:37,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:06:37,838 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:06:37,839 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2020-10-13 06:06:37,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebacad034/f54e927bb1644d35b6533686a7e244d1/FLAG6b4f949d0 [2020-10-13 06:06:38,461 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:06:38,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2020-10-13 06:06:38,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebacad034/f54e927bb1644d35b6533686a7e244d1/FLAG6b4f949d0 [2020-10-13 06:06:38,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebacad034/f54e927bb1644d35b6533686a7e244d1 [2020-10-13 06:06:38,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:06:38,728 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:06:38,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:06:38,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:06:38,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:06:38,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:38" (1/1) ... [2020-10-13 06:06:38,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:38, skipping insertion in model container [2020-10-13 06:06:38,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:38" (1/1) ... [2020-10-13 06:06:38,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:06:38,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:06:39,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:06:39,182 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:06:39,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:06:39,421 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:06:39,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39 WrapperNode [2020-10-13 06:06:39,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:06:39,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:06:39,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:06:39,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:06:39,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (1/1) ... [2020-10-13 06:06:39,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (1/1) ... [2020-10-13 06:06:39,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (1/1) ... [2020-10-13 06:06:39,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (1/1) ... [2020-10-13 06:06:39,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (1/1) ... [2020-10-13 06:06:39,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (1/1) ... [2020-10-13 06:06:39,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (1/1) ... [2020-10-13 06:06:39,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:06:39,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:06:39,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:06:39,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:06:39,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:06:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:06:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:06:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:06:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:06:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:06:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:06:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:06:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:06:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:06:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:06:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:06:40,825 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:06:40,826 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:06:40,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:40 BoogieIcfgContainer [2020-10-13 06:06:40,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:06:40,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:06:40,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:06:40,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:06:40,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:06:38" (1/3) ... [2020-10-13 06:06:40,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd5c271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:40, skipping insertion in model container [2020-10-13 06:06:40,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:39" (2/3) ... [2020-10-13 06:06:40,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd5c271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:40, skipping insertion in model container [2020-10-13 06:06:40,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:40" (3/3) ... [2020-10-13 06:06:40,840 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label55.c [2020-10-13 06:06:40,850 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:06:40,857 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:06:40,872 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:06:40,899 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:06:40,900 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:06:40,900 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:06:40,900 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:06:40,900 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:06:40,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:06:40,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:06:40,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:06:40,924 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:06:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 06:06:40,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:40,938 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] [2020-10-13 06:06:40,939 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:40,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:40,945 INFO L82 PathProgramCache]: Analyzing trace with hash -462333177, now seen corresponding path program 1 times [2020-10-13 06:06:40,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:40,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890345857] [2020-10-13 06:06:40,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:41,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:41,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:42,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 06:06:42,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:42,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1558 [2020-10-13 06:06:42,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:42,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:06:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:06:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:06:42,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:06:43,260 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2020-10-13 06:06:43,393 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2020-10-13 06:06:43,570 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 39 [2020-10-13 06:06:43,738 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 38 [2020-10-13 06:06:43,891 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 37 [2020-10-13 06:06:44,061 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 35 [2020-10-13 06:06:44,199 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2020-10-13 06:06:44,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:44,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:44,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:44,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:06:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,421 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 06:06:44,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890345857] [2020-10-13 06:06:44,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:06:44,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:06:44,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580707439] [2020-10-13 06:06:44,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:06:44,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:44,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:06:44,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:06:44,448 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:06:44,929 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2020-10-13 06:06:45,159 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:06:45,413 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:06:45,704 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:06:46,191 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-13 06:06:46,723 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-13 06:06:47,053 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-10-13 06:06:48,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:48,121 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:06:48,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:48,123 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-10-13 06:06:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:48,136 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:06:48,137 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:06:48,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:48,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:06:48,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:06:48,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:06:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:06:48,215 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 117 [2020-10-13 06:06:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:48,215 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:06:48,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:06:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:06:48,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 06:06:48,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:48,219 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] [2020-10-13 06:06:48,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:06:48,220 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:48,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:48,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1688247540, now seen corresponding path program 1 times [2020-10-13 06:06:48,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:48,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931470155] [2020-10-13 06:06:48,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:48,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:48,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:48,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:49,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:49,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 06:06:49,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:49,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1643 [2020-10-13 06:06:49,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:06:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:06:49,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:50,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:06:50,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:50,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:50,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:50,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:06:50,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:06:50,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,476 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 06:06:50,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931470155] [2020-10-13 06:06:50,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:50,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:50,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766553680] [2020-10-13 06:06:50,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:50,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:50,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:50,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:50,480 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:06:51,247 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:06:51,906 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:06:52,181 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:06:52,566 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:06:52,750 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:06:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:53,301 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:06:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:06:53,302 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-10-13 06:06:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:53,306 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:06:53,306 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:06:53,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:06:53,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:06:53,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:06:53,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:06:53,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:06:53,330 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 125 [2020-10-13 06:06:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:53,331 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:06:53,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:06:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 06:06:53,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:53,335 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] [2020-10-13 06:06:53,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:06:53,335 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:53,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:53,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1798233650, now seen corresponding path program 1 times [2020-10-13 06:06:53,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:53,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407545985] [2020-10-13 06:06:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:53,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:53,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 06:06:53,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:53,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-13 06:06:53,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:06:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:06:53,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:54,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:54,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:54,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:54,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:54,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:54,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:06:54,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:54,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:54,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:54,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:54,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:54,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:06:54,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:54,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:54,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:06:54,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:54,264 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 06:06:54,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407545985] [2020-10-13 06:06:54,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:54,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:54,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260939612] [2020-10-13 06:06:54,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:54,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:54,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:54,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:54,267 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:06:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:55,255 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 06:06:55,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:55,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-10-13 06:06:55,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:55,260 INFO L225 Difference]: With dead ends: 587 [2020-10-13 06:06:55,260 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 06:06:55,261 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 06:06:55,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 06:06:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 06:06:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:06:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 06:06:55,280 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 128 [2020-10-13 06:06:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:55,281 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 06:06:55,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 06:06:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 06:06:55,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:55,284 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] [2020-10-13 06:06:55,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:06:55,284 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:55,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:55,285 INFO L82 PathProgramCache]: Analyzing trace with hash -263991734, now seen corresponding path program 1 times [2020-10-13 06:06:55,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:55,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50207749] [2020-10-13 06:06:55,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:57,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:57,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 06:06:57,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:57,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1742 [2020-10-13 06:06:57,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:06:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:57,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:57,472 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:06:57,604 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:06:58,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:58,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:58,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:58,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:58,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:58,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:58,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:58,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:58,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:58,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:58,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:58,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:58,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:06:58,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:06:58,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:58,315 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 06:06:58,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50207749] [2020-10-13 06:06:58,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:58,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:58,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685757383] [2020-10-13 06:06:58,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:58,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:58,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:58,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:58,320 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 06:06:58,879 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:06:59,275 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:06:59,724 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:07:00,007 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:07:00,277 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:07:00,670 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:07:01,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:01,086 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 06:07:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:01,086 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 158 [2020-10-13 06:07:01,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:01,090 INFO L225 Difference]: With dead ends: 552 [2020-10-13 06:07:01,091 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 06:07:01,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:01,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 06:07:01,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 06:07:01,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 06:07:01,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 06:07:01,113 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 158 [2020-10-13 06:07:01,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:01,114 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 06:07:01,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:01,114 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 06:07:01,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 06:07:01,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:01,118 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] [2020-10-13 06:07:01,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:07:01,119 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:01,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:01,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1703428635, now seen corresponding path program 1 times [2020-10-13 06:07:01,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:01,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789292147] [2020-10-13 06:07:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:01,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:05,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-13 06:07:05,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:05,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4406 [2020-10-13 06:07:05,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:05,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:07:05,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:07:05,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:06,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:06,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:06,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:06,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:06,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:06,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:06,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:06,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:06,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:06,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:06,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:06,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:06,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:06,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:06,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:06,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:06,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:06,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:07:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:06,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:06,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:07:06,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 06:07:06,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:07:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:06,455 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 06:07:06,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789292147] [2020-10-13 06:07:06,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:06,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:07:06,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681170647] [2020-10-13 06:07:06,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:07:06,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:06,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:07:06,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:07:06,459 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 14 states. [2020-10-13 06:07:07,139 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2020-10-13 06:07:07,347 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-13 06:07:07,597 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-13 06:07:07,953 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:07:08,223 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:08,429 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:07:08,713 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-13 06:07:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:10,310 INFO L93 Difference]: Finished difference Result 718 states and 929 transitions. [2020-10-13 06:07:10,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:07:10,312 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 175 [2020-10-13 06:07:10,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:10,316 INFO L225 Difference]: With dead ends: 718 [2020-10-13 06:07:10,316 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:07:10,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:07:10,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:07:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 393. [2020-10-13 06:07:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-13 06:07:10,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 458 transitions. [2020-10-13 06:07:10,337 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 458 transitions. Word has length 175 [2020-10-13 06:07:10,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:10,338 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 458 transitions. [2020-10-13 06:07:10,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:07:10,338 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 458 transitions. [2020-10-13 06:07:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-13 06:07:10,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:10,343 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] [2020-10-13 06:07:10,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:07:10,343 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:10,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:10,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1089315914, now seen corresponding path program 1 times [2020-10-13 06:07:10,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:10,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142737948] [2020-10-13 06:07:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:10,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:10,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:10,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:12,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:12,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-13 06:07:12,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1821 [2020-10-13 06:07:12,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:07:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:07:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:12,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:12,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:12,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:12,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:12,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:12,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:12,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:12,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:12,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:12,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:12,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:12,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:12,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:12,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:07:12,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:12,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:12,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:12,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:07:12,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:13,058 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 06:07:13,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142737948] [2020-10-13 06:07:13,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:13,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:13,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866366948] [2020-10-13 06:07:13,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:13,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:13,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:13,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:13,062 INFO L87 Difference]: Start difference. First operand 393 states and 458 transitions. Second operand 13 states. [2020-10-13 06:07:14,098 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:14,501 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:14,710 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:07:14,928 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:07:15,166 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:07:15,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:15,608 INFO L93 Difference]: Finished difference Result 791 states and 969 transitions. [2020-10-13 06:07:15,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:15,609 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 180 [2020-10-13 06:07:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:15,612 INFO L225 Difference]: With dead ends: 791 [2020-10-13 06:07:15,613 INFO L226 Difference]: Without dead ends: 444 [2020-10-13 06:07:15,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:15,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-10-13 06:07:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2020-10-13 06:07:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-13 06:07:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 510 transitions. [2020-10-13 06:07:15,637 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 510 transitions. Word has length 180 [2020-10-13 06:07:15,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:15,639 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 510 transitions. [2020-10-13 06:07:15,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 510 transitions. [2020-10-13 06:07:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-13 06:07:15,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:15,643 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] [2020-10-13 06:07:15,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:07:15,644 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:15,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:15,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2057277527, now seen corresponding path program 1 times [2020-10-13 06:07:15,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:15,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182201974] [2020-10-13 06:07:15,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:18,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 06:07:18,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:18,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3222 [2020-10-13 06:07:18,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:07:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:07:18,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,298 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:07:19,442 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-10-13 06:07:19,566 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-13 06:07:19,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:19,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:19,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:19,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:19,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:19,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:19,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:19,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:19,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:19,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:19,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:20,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:20,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:20,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:20,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:20,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:07:20,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:07:20,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:20,150 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 06:07:20,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182201974] [2020-10-13 06:07:20,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:20,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:20,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459047130] [2020-10-13 06:07:20,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:20,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:20,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:20,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:20,152 INFO L87 Difference]: Start difference. First operand 444 states and 510 transitions. Second operand 13 states. [2020-10-13 06:07:20,797 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:07:21,107 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:07:21,481 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:07:21,741 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:07:22,074 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:07:22,405 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:07:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:22,719 INFO L93 Difference]: Finished difference Result 884 states and 1060 transitions. [2020-10-13 06:07:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:22,720 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2020-10-13 06:07:22,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:22,723 INFO L225 Difference]: With dead ends: 884 [2020-10-13 06:07:22,723 INFO L226 Difference]: Without dead ends: 506 [2020-10-13 06:07:22,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:07:22,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-10-13 06:07:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2020-10-13 06:07:22,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2020-10-13 06:07:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 578 transitions. [2020-10-13 06:07:22,742 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 578 transitions. Word has length 191 [2020-10-13 06:07:22,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:22,743 INFO L479 AbstractCegarLoop]: Abstraction has 506 states and 578 transitions. [2020-10-13 06:07:22,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 578 transitions. [2020-10-13 06:07:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-13 06:07:22,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:22,746 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] [2020-10-13 06:07:22,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:07:22,747 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:22,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:22,747 INFO L82 PathProgramCache]: Analyzing trace with hash 192941959, now seen corresponding path program 1 times [2020-10-13 06:07:22,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:22,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220006741] [2020-10-13 06:07:22,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 06:07:25,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:25,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2482 [2020-10-13 06:07:25,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:07:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:25,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:25,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:25,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:25,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:25,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:25,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:25,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:25,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:07:25,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:25,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:07:25,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:07:25,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,786 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 06:07:25,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220006741] [2020-10-13 06:07:25,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:25,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:25,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143004833] [2020-10-13 06:07:25,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:25,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:25,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:25,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:25,788 INFO L87 Difference]: Start difference. First operand 506 states and 578 transitions. Second operand 13 states. [2020-10-13 06:07:26,854 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:27,182 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:27,409 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:07:27,656 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:07:27,937 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:07:28,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:28,369 INFO L93 Difference]: Finished difference Result 1006 states and 1191 transitions. [2020-10-13 06:07:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:28,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 194 [2020-10-13 06:07:28,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:28,376 INFO L225 Difference]: With dead ends: 1006 [2020-10-13 06:07:28,376 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:07:28,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:28,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:07:28,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 544. [2020-10-13 06:07:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-13 06:07:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 623 transitions. [2020-10-13 06:07:28,397 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 623 transitions. Word has length 194 [2020-10-13 06:07:28,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:28,398 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 623 transitions. [2020-10-13 06:07:28,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:28,398 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 623 transitions. [2020-10-13 06:07:28,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-13 06:07:28,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:28,401 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] [2020-10-13 06:07:28,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:07:28,401 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:28,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:28,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1534825955, now seen corresponding path program 1 times [2020-10-13 06:07:28,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:28,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595892215] [2020-10-13 06:07:28,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:30,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-13 06:07:30,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:30,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2200 [2020-10-13 06:07:30,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:07:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:30,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:31,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:31,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:31,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:31,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:31,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:31,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:31,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:31,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:31,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:31,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:31,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:31,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:31,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:31,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:31,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:31,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:31,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:31,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:31,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:07:31,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:07:31,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:07:31,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:31,212 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 06:07:31,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595892215] [2020-10-13 06:07:31,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:31,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:31,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38937011] [2020-10-13 06:07:31,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:31,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:31,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:31,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:31,214 INFO L87 Difference]: Start difference. First operand 544 states and 623 transitions. Second operand 13 states. [2020-10-13 06:07:32,100 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:32,404 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:32,645 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:07:32,850 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:07:33,142 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:07:33,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:33,417 INFO L93 Difference]: Finished difference Result 1084 states and 1283 transitions. [2020-10-13 06:07:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:07:33,421 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 197 [2020-10-13 06:07:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:33,424 INFO L225 Difference]: With dead ends: 1084 [2020-10-13 06:07:33,425 INFO L226 Difference]: Without dead ends: 589 [2020-10-13 06:07:33,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:33,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-10-13 06:07:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 587. [2020-10-13 06:07:33,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-13 06:07:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 673 transitions. [2020-10-13 06:07:33,445 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 673 transitions. Word has length 197 [2020-10-13 06:07:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:33,446 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 673 transitions. [2020-10-13 06:07:33,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 673 transitions. [2020-10-13 06:07:33,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-13 06:07:33,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:33,449 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] [2020-10-13 06:07:33,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:07:33,450 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:33,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:33,450 INFO L82 PathProgramCache]: Analyzing trace with hash -844220082, now seen corresponding path program 1 times [2020-10-13 06:07:33,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:33,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990687788] [2020-10-13 06:07:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:33,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:33,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:33,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:33,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:33,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-13 06:07:37,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3763 [2020-10-13 06:07:37,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:37,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:07:37,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:37,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:37,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:37,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:37,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:37,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:37,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:07:37,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:37,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:37,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:07:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:07:37,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:37,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:37,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:37,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:07:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:07:37,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:07:37,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:07:37,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,925 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 06:07:37,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990687788] [2020-10-13 06:07:37,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:37,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:37,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518632808] [2020-10-13 06:07:37,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:37,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:37,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:37,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:37,927 INFO L87 Difference]: Start difference. First operand 587 states and 673 transitions. Second operand 13 states. [2020-10-13 06:07:39,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:39,686 INFO L93 Difference]: Finished difference Result 1166 states and 1379 transitions. [2020-10-13 06:07:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:39,690 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2020-10-13 06:07:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:39,694 INFO L225 Difference]: With dead ends: 1166 [2020-10-13 06:07:39,694 INFO L226 Difference]: Without dead ends: 628 [2020-10-13 06:07:39,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-10-13 06:07:39,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 587. [2020-10-13 06:07:39,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-13 06:07:39,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 673 transitions. [2020-10-13 06:07:39,720 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 673 transitions. Word has length 201 [2020-10-13 06:07:39,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:39,721 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 673 transitions. [2020-10-13 06:07:39,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 673 transitions. [2020-10-13 06:07:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-13 06:07:39,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:39,724 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:07:39,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:07:39,725 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:39,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:39,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1043557524, now seen corresponding path program 1 times [2020-10-13 06:07:39,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:39,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721549570] [2020-10-13 06:07:39,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:39,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:39,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:39,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:40,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-13 06:07:42,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2915 [2020-10-13 06:07:42,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:07:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:07:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:43,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:43,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:43,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:07:43,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:43,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:43,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:43,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:43,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:07:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:07:43,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:07:43,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:43,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:07:43,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,319 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:07:43,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721549570] [2020-10-13 06:07:43,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:43,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:43,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141323731] [2020-10-13 06:07:43,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:43,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:43,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:43,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:43,321 INFO L87 Difference]: Start difference. First operand 587 states and 673 transitions. Second operand 13 states. [2020-10-13 06:07:45,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:45,351 INFO L93 Difference]: Finished difference Result 1201 states and 1427 transitions. [2020-10-13 06:07:45,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:07:45,356 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 207 [2020-10-13 06:07:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:45,360 INFO L225 Difference]: With dead ends: 1201 [2020-10-13 06:07:45,360 INFO L226 Difference]: Without dead ends: 680 [2020-10-13 06:07:45,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:07:45,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-13 06:07:45,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 595. [2020-10-13 06:07:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-10-13 06:07:45,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 684 transitions. [2020-10-13 06:07:45,381 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 684 transitions. Word has length 207 [2020-10-13 06:07:45,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:45,382 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 684 transitions. [2020-10-13 06:07:45,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:45,382 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 684 transitions. [2020-10-13 06:07:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-13 06:07:45,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:45,385 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] [2020-10-13 06:07:45,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:07:45,385 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:45,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:45,385 INFO L82 PathProgramCache]: Analyzing trace with hash -469613564, now seen corresponding path program 1 times [2020-10-13 06:07:45,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:45,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67692799] [2020-10-13 06:07:45,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:48,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:48,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-13 06:07:48,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:48,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2643 [2020-10-13 06:07:48,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:07:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:48,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:48,435 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:07:48,571 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:07:48,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:48,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:48,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:48,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:48,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:48,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:07:48,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:48,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:48,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:48,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:49,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:49,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:49,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:49,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:49,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:49,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:49,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:49,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:49,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:49,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:49,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:49,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:49,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:49,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:49,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:49,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:49,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:49,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:49,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:49,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:49,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:49,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:07:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:49,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:49,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:49,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:07:49,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:07:49,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:07:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:49,220 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 06:07:49,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67692799] [2020-10-13 06:07:49,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:49,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:49,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504680749] [2020-10-13 06:07:49,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:49,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:49,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:49,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:49,222 INFO L87 Difference]: Start difference. First operand 595 states and 684 transitions. Second operand 13 states. [2020-10-13 06:07:49,640 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:07:49,957 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:07:50,213 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:07:50,368 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:07:50,668 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:07:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:51,115 INFO L93 Difference]: Finished difference Result 1187 states and 1410 transitions. [2020-10-13 06:07:51,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:07:51,116 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2020-10-13 06:07:51,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:51,120 INFO L225 Difference]: With dead ends: 1187 [2020-10-13 06:07:51,120 INFO L226 Difference]: Without dead ends: 641 [2020-10-13 06:07:51,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:51,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-10-13 06:07:51,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 595. [2020-10-13 06:07:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-10-13 06:07:51,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 683 transitions. [2020-10-13 06:07:51,141 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 683 transitions. Word has length 219 [2020-10-13 06:07:51,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:51,141 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 683 transitions. [2020-10-13 06:07:51,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 683 transitions. [2020-10-13 06:07:51,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-13 06:07:51,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:51,144 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] [2020-10-13 06:07:51,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:07:51,145 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:51,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:51,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1748261873, now seen corresponding path program 1 times [2020-10-13 06:07:51,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:51,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000258853] [2020-10-13 06:07:51,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:51,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:51,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:51,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:51,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:53,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:53,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-13 06:07:53,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2138 [2020-10-13 06:07:53,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:07:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:07:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:53,647 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:07:53,789 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:07:54,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:54,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:54,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:54,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:54,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:07:54,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:54,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:07:54,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:07:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,440 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 06:07:54,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000258853] [2020-10-13 06:07:54,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:54,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:54,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623771866] [2020-10-13 06:07:54,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:54,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:54,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:54,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:54,442 INFO L87 Difference]: Start difference. First operand 595 states and 683 transitions. Second operand 13 states. [2020-10-13 06:07:55,172 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:07:55,464 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:07:55,755 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:07:56,332 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:07:56,670 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:07:56,968 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:07:57,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:57,344 INFO L93 Difference]: Finished difference Result 1188 states and 1413 transitions. [2020-10-13 06:07:57,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:57,350 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 231 [2020-10-13 06:07:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:57,353 INFO L225 Difference]: With dead ends: 1188 [2020-10-13 06:07:57,353 INFO L226 Difference]: Without dead ends: 612 [2020-10-13 06:07:57,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:07:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-10-13 06:07:57,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 610. [2020-10-13 06:07:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-10-13 06:07:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 699 transitions. [2020-10-13 06:07:57,374 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 699 transitions. Word has length 231 [2020-10-13 06:07:57,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:57,375 INFO L479 AbstractCegarLoop]: Abstraction has 610 states and 699 transitions. [2020-10-13 06:07:57,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 699 transitions. [2020-10-13 06:07:57,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-13 06:07:57,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:57,378 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] [2020-10-13 06:07:57,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:07:57,378 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:57,378 INFO L82 PathProgramCache]: Analyzing trace with hash 301837710, now seen corresponding path program 1 times [2020-10-13 06:07:57,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:57,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082539197] [2020-10-13 06:07:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-13 06:07:58,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:58,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-10-13 06:07:58,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:07:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:07:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:58,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:58,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:58,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:58,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:07:58,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:58,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:07:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:07:58,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:58,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:58,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:07:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:07:58,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:07:58,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:07:58,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,633 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 06:07:58,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082539197] [2020-10-13 06:07:58,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:58,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:58,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312374244] [2020-10-13 06:07:58,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:58,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:58,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:58,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:58,635 INFO L87 Difference]: Start difference. First operand 610 states and 699 transitions. Second operand 5 states. [2020-10-13 06:07:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:59,536 INFO L93 Difference]: Finished difference Result 1240 states and 1478 transitions. [2020-10-13 06:07:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:59,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 233 [2020-10-13 06:07:59,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:59,539 INFO L225 Difference]: With dead ends: 1240 [2020-10-13 06:07:59,539 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:07:59,541 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 06:07:59,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:07:59,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:07:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:07:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 301 transitions. [2020-10-13 06:07:59,549 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 301 transitions. Word has length 233 [2020-10-13 06:07:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:59,549 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 301 transitions. [2020-10-13 06:07:59,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 301 transitions. [2020-10-13 06:07:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-13 06:07:59,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:59,551 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] [2020-10-13 06:07:59,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:07:59,551 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:59,552 INFO L82 PathProgramCache]: Analyzing trace with hash 89126282, now seen corresponding path program 1 times [2020-10-13 06:07:59,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:59,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869509356] [2020-10-13 06:07:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:59,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:59,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:59,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:59,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:01,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:03,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-13 06:08:03,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:08:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3634 [2020-10-13 06:08:03,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:08:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:08:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:03,647 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2020-10-13 06:08:03,873 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-13 06:08:04,018 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-10-13 06:08:04,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:04,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:04,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:04,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:04,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:04,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:04,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:04,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:04,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:04,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:04,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:04,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:04,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:04,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:04,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:04,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:04,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:04,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:04,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:04,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:04,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:04,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:04,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:04,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:08:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:04,735 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 06:08:04,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869509356] [2020-10-13 06:08:04,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:04,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:08:04,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10202386] [2020-10-13 06:08:04,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:08:04,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:04,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:08:04,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:08:04,737 INFO L87 Difference]: Start difference. First operand 271 states and 301 transitions. Second operand 14 states. [2020-10-13 06:08:05,304 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-13 06:08:05,579 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-10-13 06:08:05,870 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-10-13 06:08:06,154 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-10-13 06:08:06,411 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-10-13 06:08:06,808 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-13 06:08:07,157 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-10-13 06:08:07,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:07,481 INFO L93 Difference]: Finished difference Result 551 states and 643 transitions. [2020-10-13 06:08:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:08:07,482 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 244 [2020-10-13 06:08:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:07,485 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:08:07,485 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:08:07,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:08:07,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:08:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:08:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:08:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 382 transitions. [2020-10-13 06:08:07,495 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 382 transitions. Word has length 244 [2020-10-13 06:08:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:07,496 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 382 transitions. [2020-10-13 06:08:07,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:08:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 382 transitions. [2020-10-13 06:08:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-13 06:08:07,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:07,498 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] [2020-10-13 06:08:07,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:08:07,498 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:07,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:07,499 INFO L82 PathProgramCache]: Analyzing trace with hash -384377193, now seen corresponding path program 1 times [2020-10-13 06:08:07,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:07,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398912071] [2020-10-13 06:08:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-13 06:08:07,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:07,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-13 06:08:07,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:07,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:08:07,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:08:07,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:07,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:07,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:07,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:08:07,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:08,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:08,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:08,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:08,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:08,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:08,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:08:08,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:08,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:08,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:08,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:08,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:08,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:08,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:08,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:08,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:08,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:08,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:08:08,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:08,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:08:08,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:08:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:08,392 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 06:08:08,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398912071] [2020-10-13 06:08:08,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:08,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:08,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208238145] [2020-10-13 06:08:08,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:08,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:08,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:08,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:08,399 INFO L87 Difference]: Start difference. First operand 346 states and 382 transitions. Second operand 5 states. [2020-10-13 06:08:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:09,193 INFO L93 Difference]: Finished difference Result 708 states and 814 transitions. [2020-10-13 06:08:09,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:09,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2020-10-13 06:08:09,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:09,197 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:08:09,197 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:08:09,198 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 06:08:09,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:08:09,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:08:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:08:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 380 transitions. [2020-10-13 06:08:09,207 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 380 transitions. Word has length 256 [2020-10-13 06:08:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:09,207 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 380 transitions. [2020-10-13 06:08:09,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 380 transitions. [2020-10-13 06:08:09,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-13 06:08:09,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:09,210 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] [2020-10-13 06:08:09,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:08:09,210 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:09,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:09,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1408307315, now seen corresponding path program 1 times [2020-10-13 06:08:09,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:09,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25879373] [2020-10-13 06:08:09,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:09,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:10,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:10,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-13 06:08:10,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:10,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 885 [2020-10-13 06:08:10,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:08:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:08:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:10,560 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-10-13 06:08:11,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:11,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:11,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:11,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:08:11,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:11,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:11,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:11,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:11,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:11,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:11,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:08:11,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:11,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:08:11,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:11,663 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 06:08:11,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25879373] [2020-10-13 06:08:11,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:11,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:08:11,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208282096] [2020-10-13 06:08:11,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:08:11,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:11,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:08:11,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:08:11,667 INFO L87 Difference]: Start difference. First operand 346 states and 380 transitions. Second operand 14 states. [2020-10-13 06:08:12,171 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2020-10-13 06:08:12,404 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:08:12,706 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-10-13 06:08:12,987 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 06:08:13,300 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:08:13,563 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-13 06:08:13,906 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:08:14,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:14,098 INFO L93 Difference]: Finished difference Result 698 states and 799 transitions. [2020-10-13 06:08:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:14,099 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 259 [2020-10-13 06:08:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:14,103 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:08:14,103 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:08:14,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:08:14,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:08:14,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:08:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:08:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 459 transitions. [2020-10-13 06:08:14,114 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 459 transitions. Word has length 259 [2020-10-13 06:08:14,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:14,115 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 459 transitions. [2020-10-13 06:08:14,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:08:14,115 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 459 transitions. [2020-10-13 06:08:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-13 06:08:14,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:14,118 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] [2020-10-13 06:08:14,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:08:14,118 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:14,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:14,118 INFO L82 PathProgramCache]: Analyzing trace with hash 419933431, now seen corresponding path program 1 times [2020-10-13 06:08:14,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:14,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913667611] [2020-10-13 06:08:14,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 06:08:14,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:14,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-10-13 06:08:14,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:08:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:08:14,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:14,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:14,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:14,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:14,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:14,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:14,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:14,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:14,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:14,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:08:14,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:14,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:14,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:14,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:14,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:08:14,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:14,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:14,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:14,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:14,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:14,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:15,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:15,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:15,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:15,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:08:15,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:15,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:08:15,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:08:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:15,468 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 06:08:15,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913667611] [2020-10-13 06:08:15,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:15,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:15,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042459967] [2020-10-13 06:08:15,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:15,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:15,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:15,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:15,474 INFO L87 Difference]: Start difference. First operand 418 states and 459 transitions. Second operand 5 states. [2020-10-13 06:08:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:16,524 INFO L93 Difference]: Finished difference Result 851 states and 967 transitions. [2020-10-13 06:08:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:16,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-10-13 06:08:16,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:16,527 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:08:16,527 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:08:16,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:08:16,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:08:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:08:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 457 transitions. [2020-10-13 06:08:16,539 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 457 transitions. Word has length 261 [2020-10-13 06:08:16,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:16,540 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 457 transitions. [2020-10-13 06:08:16,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:16,540 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 457 transitions. [2020-10-13 06:08:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-13 06:08:16,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:16,543 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] [2020-10-13 06:08:16,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:08:16,543 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:16,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:16,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1523952880, now seen corresponding path program 1 times [2020-10-13 06:08:16,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:16,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801808704] [2020-10-13 06:08:16,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-10-13 06:08:17,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:17,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 942 [2020-10-13 06:08:17,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:08:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:08:17,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:17,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:17,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:17,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:17,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:17,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:17,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:17,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:17,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:08:17,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:08:17,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:08:17,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,958 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 06:08:17,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801808704] [2020-10-13 06:08:17,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:17,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:17,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053044737] [2020-10-13 06:08:17,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:17,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:17,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:17,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:17,960 INFO L87 Difference]: Start difference. First operand 418 states and 457 transitions. Second operand 5 states. [2020-10-13 06:08:18,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:18,716 INFO L93 Difference]: Finished difference Result 849 states and 960 transitions. [2020-10-13 06:08:18,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:18,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2020-10-13 06:08:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:18,719 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:08:18,720 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:08:18,721 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 06:08:18,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:08:18,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:08:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:08:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 455 transitions. [2020-10-13 06:08:18,731 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 455 transitions. Word has length 279 [2020-10-13 06:08:18,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:18,731 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 455 transitions. [2020-10-13 06:08:18,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 455 transitions. [2020-10-13 06:08:18,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-13 06:08:18,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:18,734 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] [2020-10-13 06:08:18,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:08:18,734 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:18,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:18,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1787307203, now seen corresponding path program 1 times [2020-10-13 06:08:18,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:18,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585171033] [2020-10-13 06:08:18,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-13 06:08:19,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:19,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-10-13 06:08:19,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:08:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:08:19,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:19,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:19,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:19,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:19,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:19,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:19,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:08:19,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:19,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:19,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:08:19,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:19,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:19,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:19,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:19,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:19,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:08:19,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:08:19,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:19,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:08:19,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:19,882 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 06:08:19,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585171033] [2020-10-13 06:08:19,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:19,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:08:19,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833063200] [2020-10-13 06:08:19,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:08:19,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:19,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:08:19,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:19,884 INFO L87 Difference]: Start difference. First operand 418 states and 455 transitions. Second operand 6 states. [2020-10-13 06:08:20,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:20,849 INFO L93 Difference]: Finished difference Result 853 states and 959 transitions. [2020-10-13 06:08:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:20,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 278 [2020-10-13 06:08:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:20,852 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:08:20,852 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:08:20,853 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 06:08:20,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:08:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:08:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:08:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 453 transitions. [2020-10-13 06:08:20,864 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 453 transitions. Word has length 278 [2020-10-13 06:08:20,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:20,864 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 453 transitions. [2020-10-13 06:08:20,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:08:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 453 transitions. [2020-10-13 06:08:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-13 06:08:20,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:20,867 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] [2020-10-13 06:08:20,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:08:20,867 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:20,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:20,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1622203962, now seen corresponding path program 1 times [2020-10-13 06:08:20,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:20,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148681048] [2020-10-13 06:08:20,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:20,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:21,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:21,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:22,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:22,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-13 06:08:22,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1919 [2020-10-13 06:08:22,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:08:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:08:22,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,178 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:08:23,298 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:08:23,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:23,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:23,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:23,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:23,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:23,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:08:23,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:23,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:23,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:08:23,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:23,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:08:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:24,047 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 06:08:24,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148681048] [2020-10-13 06:08:24,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:24,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:24,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806236423] [2020-10-13 06:08:24,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:24,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:24,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:24,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:24,049 INFO L87 Difference]: Start difference. First operand 418 states and 453 transitions. Second operand 13 states. [2020-10-13 06:08:24,694 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:08:25,010 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:08:25,423 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:08:25,742 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:08:26,093 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:08:26,473 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:08:26,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:26,789 INFO L93 Difference]: Finished difference Result 835 states and 935 transitions. [2020-10-13 06:08:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:26,790 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 288 [2020-10-13 06:08:26,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:26,793 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:08:26,793 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:26,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:08:26,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:26,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:26,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 528 transitions. [2020-10-13 06:08:26,805 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 528 transitions. Word has length 288 [2020-10-13 06:08:26,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:26,806 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 528 transitions. [2020-10-13 06:08:26,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:26,806 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 528 transitions. [2020-10-13 06:08:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-13 06:08:26,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:26,808 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] [2020-10-13 06:08:26,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:08:26,809 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:26,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:26,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1181236799, now seen corresponding path program 1 times [2020-10-13 06:08:26,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:26,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096179175] [2020-10-13 06:08:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:26,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-13 06:08:27,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:27,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-10-13 06:08:27,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:27,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:08:27,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:08:27,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:27,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:27,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:27,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:27,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:27,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:27,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:08:27,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:08:27,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:08:27,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,688 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 06:08:27,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096179175] [2020-10-13 06:08:27,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:27,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:27,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99622312] [2020-10-13 06:08:27,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:27,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:27,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:27,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:27,690 INFO L87 Difference]: Start difference. First operand 483 states and 528 transitions. Second operand 5 states. [2020-10-13 06:08:28,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:28,496 INFO L93 Difference]: Finished difference Result 984 states and 1106 transitions. [2020-10-13 06:08:28,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:28,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-10-13 06:08:28,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:28,501 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:08:28,501 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:28,502 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 06:08:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:28,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 526 transitions. [2020-10-13 06:08:28,513 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 526 transitions. Word has length 297 [2020-10-13 06:08:28,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:28,513 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 526 transitions. [2020-10-13 06:08:28,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 526 transitions. [2020-10-13 06:08:28,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-13 06:08:28,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:28,516 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] [2020-10-13 06:08:28,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:08:28,516 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:28,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:28,517 INFO L82 PathProgramCache]: Analyzing trace with hash 412794146, now seen corresponding path program 1 times [2020-10-13 06:08:28,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:28,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839147406] [2020-10-13 06:08:28,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:28,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:28,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:29,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-13 06:08:29,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 698 [2020-10-13 06:08:29,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:08:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:08:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:29,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:29,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:29,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:29,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:29,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:29,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:29,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:29,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:29,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:29,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:29,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:29,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:29,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:29,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:29,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:29,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:29,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:29,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:29,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:29,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:29,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:29,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:29,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:08:29,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:29,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:08:29,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:29,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:29,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:29,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:08:29,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:29,623 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 06:08:29,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839147406] [2020-10-13 06:08:29,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:29,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:29,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636942882] [2020-10-13 06:08:29,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:29,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:29,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:29,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:29,625 INFO L87 Difference]: Start difference. First operand 483 states and 526 transitions. Second operand 5 states. [2020-10-13 06:08:30,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:30,380 INFO L93 Difference]: Finished difference Result 978 states and 1095 transitions. [2020-10-13 06:08:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:30,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-13 06:08:30,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:30,383 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:08:30,383 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:30,384 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 06:08:30,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:30,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:30,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:30,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 524 transitions. [2020-10-13 06:08:30,394 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 524 transitions. Word has length 302 [2020-10-13 06:08:30,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:30,395 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 524 transitions. [2020-10-13 06:08:30,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 524 transitions. [2020-10-13 06:08:30,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-13 06:08:30,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:30,397 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] [2020-10-13 06:08:30,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:08:30,398 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:30,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:30,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1665839762, now seen corresponding path program 1 times [2020-10-13 06:08:30,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:30,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299114745] [2020-10-13 06:08:30,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:30,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:30,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:30,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:32,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:32,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-13 06:08:32,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:32,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2041 [2020-10-13 06:08:32,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:32,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:32,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:08:32,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:08:32,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:32,834 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-13 06:08:33,036 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-13 06:08:33,276 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 54 [2020-10-13 06:08:33,509 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 51 [2020-10-13 06:08:33,730 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 47 [2020-10-13 06:08:33,955 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 44 [2020-10-13 06:08:34,144 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 39 [2020-10-13 06:08:34,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:34,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:34,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:34,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:34,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:08:34,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:34,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:34,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:34,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:34,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:34,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:34,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:34,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:34,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:34,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:34,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:34,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:34,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:34,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:34,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:34,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:34,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:34,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:34,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:34,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:34,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:34,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:34,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:34,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:34,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:34,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:34,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:34,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:34,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:34,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:34,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:34,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:34,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:34,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:34,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:34,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:34,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:34,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:34,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:34,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:34,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:34,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:34,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:08:34,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:08:34,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:34,552 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 06:08:34,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299114745] [2020-10-13 06:08:34,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:34,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:34,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777967534] [2020-10-13 06:08:34,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:34,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:34,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:34,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:34,554 INFO L87 Difference]: Start difference. First operand 483 states and 524 transitions. Second operand 13 states. [2020-10-13 06:08:35,108 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:08:35,280 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:08:35,689 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2020-10-13 06:08:36,033 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 113 [2020-10-13 06:08:36,285 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-13 06:08:36,586 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-13 06:08:36,879 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 107 [2020-10-13 06:08:37,362 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 102 [2020-10-13 06:08:37,547 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-10-13 06:08:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:37,912 INFO L93 Difference]: Finished difference Result 962 states and 1070 transitions. [2020-10-13 06:08:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:08:37,913 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 308 [2020-10-13 06:08:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:37,915 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:08:37,915 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:08:37,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:08:37,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:08:37,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:08:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:08:37,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 588 transitions. [2020-10-13 06:08:37,928 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 588 transitions. Word has length 308 [2020-10-13 06:08:37,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:37,928 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 588 transitions. [2020-10-13 06:08:37,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:37,929 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 588 transitions. [2020-10-13 06:08:37,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-13 06:08:37,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:37,931 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] [2020-10-13 06:08:37,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:08:37,932 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:37,932 INFO L82 PathProgramCache]: Analyzing trace with hash 940232267, now seen corresponding path program 1 times [2020-10-13 06:08:37,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:37,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032387298] [2020-10-13 06:08:37,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:40,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-13 06:08:40,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:40,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2165 [2020-10-13 06:08:40,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:40,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:40,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:08:40,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:08:40,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:40,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:40,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:40,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:40,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:40,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:40,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:40,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:40,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:40,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:40,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:40,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:40,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:40,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:40,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:40,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:40,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:40,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:08:40,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:40,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:40,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:40,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:40,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:40,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:40,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:40,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:40,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:40,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:40,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:40,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:40,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:40,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:40,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:40,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:40,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:40,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:08:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:40,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:40,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:08:40,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:40,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:40,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:40,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:40,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:40,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:08:40,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:40,604 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 06:08:40,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032387298] [2020-10-13 06:08:40,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:40,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:08:40,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536738887] [2020-10-13 06:08:40,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:08:40,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:40,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:08:40,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:40,606 INFO L87 Difference]: Start difference. First operand 539 states and 588 transitions. Second operand 7 states. [2020-10-13 06:08:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:41,531 INFO L93 Difference]: Finished difference Result 1088 states and 1218 transitions. [2020-10-13 06:08:41,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:41,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 313 [2020-10-13 06:08:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:41,540 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:08:41,540 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:08:41,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:08:41,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:08:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:08:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:08:41,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 586 transitions. [2020-10-13 06:08:41,555 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 586 transitions. Word has length 313 [2020-10-13 06:08:41,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:41,556 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 586 transitions. [2020-10-13 06:08:41,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:08:41,556 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 586 transitions. [2020-10-13 06:08:41,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-13 06:08:41,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:41,560 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] [2020-10-13 06:08:41,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:08:41,560 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:41,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1605375129, now seen corresponding path program 1 times [2020-10-13 06:08:41,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:41,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107885880] [2020-10-13 06:08:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-13 06:08:42,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-10-13 06:08:42,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:08:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:08:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:42,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:42,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:42,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:42,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:42,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:42,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:42,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:42,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:42,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:42,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:42,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:42,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:42,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:42,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:42,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:42,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:42,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:42,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:42,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:42,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:08:42,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:42,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:08:42,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:08:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,522 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 06:08:42,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107885880] [2020-10-13 06:08:42,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:42,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:42,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630380569] [2020-10-13 06:08:42,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:42,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:42,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:42,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:42,524 INFO L87 Difference]: Start difference. First operand 539 states and 586 transitions. Second operand 5 states. [2020-10-13 06:08:43,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:43,313 INFO L93 Difference]: Finished difference Result 1097 states and 1221 transitions. [2020-10-13 06:08:43,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:43,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 317 [2020-10-13 06:08:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:43,317 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:08:43,317 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:08:43,318 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 06:08:43,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:08:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:08:43,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:08:43,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 525 transitions. [2020-10-13 06:08:43,328 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 525 transitions. Word has length 317 [2020-10-13 06:08:43,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:43,328 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 525 transitions. [2020-10-13 06:08:43,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 525 transitions. [2020-10-13 06:08:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 06:08:43,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:43,331 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] [2020-10-13 06:08:43,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:08:43,331 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:43,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:43,332 INFO L82 PathProgramCache]: Analyzing trace with hash 665353095, now seen corresponding path program 1 times [2020-10-13 06:08:43,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:43,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095240195] [2020-10-13 06:08:43,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:43,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:43,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:43,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:45,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:45,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-13 06:08:45,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:45,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2238 [2020-10-13 06:08:45,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:08:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:08:45,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,070 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:08:46,196 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-10-13 06:08:46,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:46,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:46,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:46,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:46,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:46,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:46,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:46,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:46,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:46,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:46,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:46,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:46,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:08:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:08:46,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:46,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:08:46,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,987 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 06:08:46,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095240195] [2020-10-13 06:08:46,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:46,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:46,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694494043] [2020-10-13 06:08:46,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:46,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:46,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:46,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:46,989 INFO L87 Difference]: Start difference. First operand 481 states and 525 transitions. Second operand 13 states. [2020-10-13 06:08:47,606 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:08:47,769 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:08:47,939 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:08:48,082 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 06:08:48,330 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:08:48,551 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:08:48,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:48,886 INFO L93 Difference]: Finished difference Result 969 states and 1087 transitions. [2020-10-13 06:08:48,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:48,887 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 326 [2020-10-13 06:08:48,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:48,890 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:08:48,890 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:08:48,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:08:48,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:08:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:08:48,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 528 transitions. [2020-10-13 06:08:48,902 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 528 transitions. Word has length 326 [2020-10-13 06:08:48,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:48,903 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 528 transitions. [2020-10-13 06:08:48,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:48,903 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 528 transitions. [2020-10-13 06:08:48,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-13 06:08:48,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:48,906 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] [2020-10-13 06:08:48,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:08:48,906 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:48,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:48,906 INFO L82 PathProgramCache]: Analyzing trace with hash -874071756, now seen corresponding path program 1 times [2020-10-13 06:08:48,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:48,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992318752] [2020-10-13 06:08:48,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:49,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:49,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:49,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-13 06:08:50,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1087 [2020-10-13 06:08:50,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:08:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:08:50,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:50,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:50,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:50,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:08:50,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:50,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:50,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:50,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:50,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:50,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:50,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:50,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:50,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:50,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:50,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:50,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:50,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:50,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:50,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:50,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:50,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:50,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:50,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:50,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:50,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:50,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:08:50,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:50,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:08:50,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:50,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:50,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:08:50,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,417 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 06:08:50,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992318752] [2020-10-13 06:08:50,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:50,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:50,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097481552] [2020-10-13 06:08:50,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:50,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:50,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:50,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:50,419 INFO L87 Difference]: Start difference. First operand 483 states and 528 transitions. Second operand 5 states. [2020-10-13 06:08:51,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:51,160 INFO L93 Difference]: Finished difference Result 980 states and 1101 transitions. [2020-10-13 06:08:51,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:51,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 329 [2020-10-13 06:08:51,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:51,164 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:08:51,164 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:51,165 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 06:08:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:51,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:51,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:51,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 526 transitions. [2020-10-13 06:08:51,175 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 526 transitions. Word has length 329 [2020-10-13 06:08:51,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:51,175 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 526 transitions. [2020-10-13 06:08:51,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 526 transitions. [2020-10-13 06:08:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-13 06:08:51,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:51,178 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] [2020-10-13 06:08:51,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:08:51,178 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:51,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:51,178 INFO L82 PathProgramCache]: Analyzing trace with hash 97233439, now seen corresponding path program 1 times [2020-10-13 06:08:51,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:51,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147672129] [2020-10-13 06:08:51,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:53,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-13 06:08:53,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:53,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2772 [2020-10-13 06:08:53,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:08:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:08:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:54,511 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2020-10-13 06:08:54,650 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2020-10-13 06:08:54,782 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 38 [2020-10-13 06:08:55,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:55,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:55,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:55,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:55,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:55,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:55,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:55,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:55,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:55,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:55,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:55,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:55,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:55,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:55,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:55,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:55,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:55,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:55,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:55,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:55,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:55,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:55,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:55,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:55,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:55,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:55,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:55,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:55,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:55,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:55,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:55,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:55,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:55,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:55,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:08:55,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:55,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:55,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:08:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:55,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:08:55,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:55,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:55,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:08:55,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:55,463 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 06:08:55,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147672129] [2020-10-13 06:08:55,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:55,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:55,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866026932] [2020-10-13 06:08:55,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:55,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:55,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:55,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:55,465 INFO L87 Difference]: Start difference. First operand 483 states and 526 transitions. Second operand 13 states. [2020-10-13 06:08:56,166 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:08:56,527 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:08:56,850 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:08:57,183 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:08:57,448 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:08:57,794 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:08:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:58,082 INFO L93 Difference]: Finished difference Result 956 states and 1070 transitions. [2020-10-13 06:08:58,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:58,082 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 331 [2020-10-13 06:08:58,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:58,085 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:08:58,085 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:08:58,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:08:58,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:08:58,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:08:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:08:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 590 transitions. [2020-10-13 06:08:58,099 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 590 transitions. Word has length 331 [2020-10-13 06:08:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:58,099 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 590 transitions. [2020-10-13 06:08:58,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 590 transitions. [2020-10-13 06:08:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-13 06:08:58,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:58,102 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] [2020-10-13 06:08:58,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:08:58,102 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:58,103 INFO L82 PathProgramCache]: Analyzing trace with hash -10534637, now seen corresponding path program 1 times [2020-10-13 06:08:58,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:58,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064922794] [2020-10-13 06:08:58,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:58,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:58,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:58,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:59,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-10-13 06:09:00,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:00,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2124 [2020-10-13 06:09:00,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:00,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:09:00,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:09:00,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:00,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:00,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:00,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:00,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:00,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:09:00,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:00,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:00,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:00,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:00,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:09:00,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:00,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:09:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:09:00,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:09:00,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:09:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,819 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 06:09:00,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064922794] [2020-10-13 06:09:00,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:00,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:00,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205169610] [2020-10-13 06:09:00,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:00,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:00,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:00,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:00,821 INFO L87 Difference]: Start difference. First operand 537 states and 590 transitions. Second operand 5 states. [2020-10-13 06:09:01,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:01,598 INFO L93 Difference]: Finished difference Result 1083 states and 1219 transitions. [2020-10-13 06:09:01,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:01,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 332 [2020-10-13 06:09:01,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:01,602 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:09:01,602 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:09:01,603 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 06:09:01,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:09:01,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:09:01,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:09:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 587 transitions. [2020-10-13 06:09:01,613 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 587 transitions. Word has length 332 [2020-10-13 06:09:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:01,613 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 587 transitions. [2020-10-13 06:09:01,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:01,613 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 587 transitions. [2020-10-13 06:09:01,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-13 06:09:01,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:01,616 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] [2020-10-13 06:09:01,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:09:01,616 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:01,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:01,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1280075000, now seen corresponding path program 1 times [2020-10-13 06:09:01,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:01,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376503753] [2020-10-13 06:09:01,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:01,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:01,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:02,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:02,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-10-13 06:09:02,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:02,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1331 [2020-10-13 06:09:02,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:09:03,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:09:03,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:03,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:03,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:03,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:03,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:03,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:03,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:03,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:09:03,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:03,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:03,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:03,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:09:03,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:09:03,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:09:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,376 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 06:09:03,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376503753] [2020-10-13 06:09:03,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:03,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:03,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17465986] [2020-10-13 06:09:03,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:03,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:03,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:03,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:03,377 INFO L87 Difference]: Start difference. First operand 537 states and 587 transitions. Second operand 5 states. [2020-10-13 06:09:04,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:04,116 INFO L93 Difference]: Finished difference Result 1085 states and 1214 transitions. [2020-10-13 06:09:04,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:04,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-10-13 06:09:04,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:04,119 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:09:04,120 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:09:04,121 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 06:09:04,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:09:04,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:09:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:09:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 561 transitions. [2020-10-13 06:09:04,129 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 561 transitions. Word has length 331 [2020-10-13 06:09:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:04,130 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 561 transitions. [2020-10-13 06:09:04,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:04,130 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 561 transitions. [2020-10-13 06:09:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-10-13 06:09:04,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:04,133 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] [2020-10-13 06:09:04,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:09:04,133 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:04,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:04,134 INFO L82 PathProgramCache]: Analyzing trace with hash 760125131, now seen corresponding path program 1 times [2020-10-13 06:09:04,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:04,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837583607] [2020-10-13 06:09:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:04,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:04,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-13 06:09:06,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:06,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1961 [2020-10-13 06:09:06,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:09:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:09:06,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:06,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:06,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:06,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:06,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:06,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:06,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:06,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:06,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:06,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:06,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:06,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:06,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:06,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:06,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:09:06,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:06,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:06,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:06,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:06,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:06,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:06,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:06,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:06,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:06,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:06,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:06,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:06,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:06,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:09:06,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:06,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:06,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:06,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:09:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:06,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:09:06,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:06,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:09:06,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:09:06,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,651 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 06:09:06,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837583607] [2020-10-13 06:09:06,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:06,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:06,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038019773] [2020-10-13 06:09:06,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:06,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:06,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:06,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:06,653 INFO L87 Difference]: Start difference. First operand 514 states and 561 transitions. Second operand 5 states. [2020-10-13 06:09:07,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:07,201 INFO L93 Difference]: Finished difference Result 897 states and 991 transitions. [2020-10-13 06:09:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:07,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 353 [2020-10-13 06:09:07,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:07,203 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:09:07,203 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:09:07,205 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 06:09:07,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:09:07,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:09:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:09:07,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:09:07,206 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 353 [2020-10-13 06:09:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:07,206 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:09:07,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:07,206 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:09:07,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:09:07,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 06:09:07,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:09:07,737 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 173 [2020-10-13 06:09:13,311 WARN L193 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 324 DAG size of output: 235 [2020-10-13 06:09:14,848 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 174 DAG size of output: 139 [2020-10-13 06:09:15,912 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 142 DAG size of output: 104 [2020-10-13 06:09:15,916 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:09:15,916 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 06:09:15,916 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:09:15,917 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:09:15,917 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:09:15,917 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,917 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,917 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,917 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,917 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,917 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,918 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:09:15,918 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:09:15,918 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:09:15,918 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:09:15,918 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:09:15,918 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:09:15,919 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:09:15,919 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:09:15,919 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:09:15,919 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:09:15,919 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,919 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,920 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,920 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,920 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,920 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,920 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:09:15,920 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:09:15,920 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:09:15,921 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:09:15,921 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:09:15,921 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:09:15,921 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:09:15,921 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:09:15,921 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:09:15,921 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:09:15,921 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 509) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,922 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:09:15,923 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:09:15,924 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:09:15,925 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:09:15,925 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:09:15,925 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:09:15,925 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:09:15,925 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:09:15,925 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:09:15,925 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:09:15,925 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:09:15,926 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,927 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:09:15,928 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,929 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:09:15,930 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:09:15,931 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:09:15,932 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:09:15,932 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:09:15,932 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:09:15,932 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:09:15,932 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:09:15,933 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse55 (<= ~a16~0 4)) (.cse60 (= ~a8~0 |old(~a8~0)|)) (.cse56 (<= 4 ~a16~0)) (.cse39 (<= ~a21~0 1)) (.cse40 (<= 1 ~a21~0)) (.cse12 (= |old(~a21~0)| 1)) (.cse6 (= |old(~a7~0)| 1)) (.cse41 (= 5 ~a16~0)) (.cse0 (= |old(~a20~0)| 1)) (.cse34 (= |old(~a17~0)| 1)) (.cse49 (not (= |calculate_output_#in~input| 3))) (.cse50 (not (= |calculate_output_#in~input| 2))) (.cse52 (not (= |calculate_output_#in~input| 4))) (.cse54 (not (= |calculate_output_#in~input| 6))) (.cse18 (= ~a16~0 |old(~a16~0)|)) (.cse19 (= ~a8~0 15)) (.cse51 (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|)))) (.cse53 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse14 (= ~a7~0 |old(~a7~0)|)) (.cse15 (= ~a17~0 |old(~a17~0)|)) (.cse16 (= ~a21~0 1)) (.cse17 (= ~a20~0 |old(~a20~0)|)) (.cse21 (= ~a8~0 13)) (.cse22 (= ~a16~0 4))) (let ((.cse20 (= ~a21~0 |old(~a21~0)|)) (.cse48 (not (<= |old(~a21~0)| 0))) (.cse31 (not (<= |old(~a8~0)| 13))) (.cse42 (<= ~a7~0 1)) (.cse37 (not (<= |old(~a7~0)| 1))) (.cse33 (not (<= |old(~a17~0)| 0))) (.cse58 (not (<= |old(~a20~0)| 0))) (.cse35 (and .cse14 .cse15 .cse16 .cse17 .cse21 .cse22)) (.cse24 (not (= 0 |old(~a20~0)|))) (.cse1 (and .cse51 (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|))) .cse53)) (.cse2 (not (= 6 |old(~a16~0)|))) (.cse63 (and .cse14 .cse15 .cse16 .cse17 .cse18 .cse19)) (.cse36 (not (= 14 |old(~a8~0)|))) (.cse62 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse38 (= 14 ~a8~0)) (.cse25 (and .cse14 .cse15 .cse16 .cse17 .cse19 .cse22)) (.cse44 (and .cse49 .cse50 .cse52 (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) .cse54)) (.cse8 (not (= |old(~a8~0)| 13))) (.cse9 (not .cse34)) (.cse45 (= ~a7~0 0)) (.cse11 (not .cse0)) (.cse46 (not (= |old(~a7~0)| 0))) (.cse13 (not (= 4 |old(~a16~0)|))) (.cse47 (and .cse14 .cse15 .cse16 .cse17 .cse19 .cse41)) (.cse23 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse10 (not .cse6)) (.cse43 (not (= 5 |old(~a16~0)|))) (.cse3 (not (= 15 |old(~a8~0)|))) (.cse4 (not .cse12)) (.cse7 (not (= 0 |old(~a17~0)|))) (.cse26 (not (<= 4 |old(~a16~0)|))) (.cse27 (and .cse14 .cse15 .cse17 .cse55 .cse60 .cse56 .cse39 .cse40)) (.cse59 (not (<= 14 |old(~a8~0)|))) (.cse28 (not (<= |old(~a7~0)| 0))) (.cse29 (not (<= |old(~a21~0)| 1))) (.cse30 (not (<= 1 |old(~a21~0)|))) (.cse32 (not (<= |old(~a16~0)| 4))) (.cse61 (not (<= |old(~a8~0)| 14))) (.cse57 (not (<= |old(~a17~0)| 1))) (.cse5 (not (= ~a12~0 8)))) (and (or (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse1 .cse10 .cse11 .cse12 .cse5 .cse13)) (and .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (not (= ~a20~0 1))) (and .cse14 .cse15 .cse20 .cse17 .cse21 (not .cse16) .cse22)) (or .cse23 .cse10 (and .cse14 .cse15 (= ~a21~0 ~a7~0) .cse17 .cse19 .cse22) .cse3 .cse5 (not (= |old(~a7~0)| |old(~a21~0)|)) .cse13 .cse7) (or .cse1 .cse24 .cse25 .cse3 .cse4 .cse5 .cse13 .cse7) (or .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 (not (<= 13 |old(~a8~0)|)) .cse33 .cse5) (or .cse8 .cse1 .cse10 (and .cse14 .cse15 .cse20 .cse17 .cse21 .cse22) .cse11 .cse12 .cse5 .cse13 .cse7) (or .cse8 .cse0 .cse34 .cse4 .cse35 .cse5 .cse13 .cse6) (or .cse36 .cse29 .cse30 .cse11 .cse37 (not (<= |old(~a20~0)| |old(~a7~0)|)) (and .cse15 .cse17 .cse38 (<= ~a20~0 ~a7~0) .cse39 .cse40 .cse41 .cse42) .cse33 .cse43 .cse5) (or .cse36 .cse23 .cse10 .cse24 (and .cse14 .cse15 .cse16 .cse17 .cse38 .cse41) .cse43 .cse4 .cse5) (or .cse9 .cse0 .cse25 .cse44 .cse3 .cse4 .cse5 .cse13 .cse6) (or .cse8 .cse9 .cse2 .cse11 (and .cse15 .cse16 .cse17 .cse18 .cse21 .cse45) .cse4 .cse5 .cse46) (or .cse47 .cse43 .cse44 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse48 .cse10 .cse11 (and .cse14 .cse15 .cse20 .cse17 .cse21 .cse41) (and .cse49 .cse50 .cse51 .cse52 .cse53 .cse54) .cse43 .cse5) (or .cse8 .cse1 (and .cse14 .cse15 .cse20 .cse17 .cse18 .cse21) .cse10 .cse2 .cse11 .cse12 .cse5 .cse7) (or (and .cse14 .cse15 (< 12 ~a8~0) .cse20 .cse17 .cse55 .cse56 (<= ~a8~0 13)) (and .cse48 (not (<= 2 |old(~a21~0)|))) .cse32 .cse37 .cse57 (not (< 0 |old(~a7~0)|)) .cse26 (not (< 0 |old(~a17~0)|)) .cse1 .cse31 (not (< 12 |old(~a8~0)|)) .cse5 .cse58) (or .cse26 .cse59 .cse29 (not (<= 1 |old(~a7~0)|)) .cse30 (and (<= 1 ~a7~0) .cse15 .cse17 .cse55 .cse60 .cse56 .cse39 .cse40 .cse42) .cse32 .cse37 .cse61 .cse33 .cse5 .cse58) (or .cse8 .cse9 .cse10 .cse11 .cse4 .cse35 .cse5 .cse13) (or (and .cse15 .cse16 .cse17 .cse38 .cse22 (= ~a17~0 ~a7~0)) .cse36 .cse62 .cse23 .cse4 .cse5 .cse13 .cse7) (or .cse0 (and .cse15 .cse14 .cse16 .cse17 .cse18 .cse19) .cse43 .cse44 .cse3 .cse4 .cse5 .cse6) (or .cse9 .cse1 .cse2 .cse63 .cse24 .cse3 .cse4 .cse5 .cse6) (or .cse1 .cse2 .cse63 .cse11 .cse34 .cse3 .cse4 .cse5 .cse6) (or (and .cse15 .cse16 .cse17 .cse19 .cse41 .cse45) .cse9 .cse43 .cse44 .cse3 .cse4 .cse5 .cse46) (or .cse36 .cse62 (and .cse15 .cse16 .cse17 .cse38 .cse41 .cse45) (not (= |old(~a7~0)| |old(~a20~0)|)) .cse43 .cse4 .cse5 .cse46) (or .cse11 .cse25 .cse44 .cse3 .cse4 .cse5 .cse13 .cse6 .cse7) (or .cse8 .cse9 (and .cse15 .cse16 .cse17 .cse21 .cse22 .cse45) .cse11 .cse4 .cse5 .cse46 .cse13) (or .cse47 .cse23 .cse10 .cse43 .cse3 .cse4 .cse5 .cse7) (or .cse26 .cse27 .cse59 .cse28 .cse29 .cse30 .cse32 .cse61 .cse57 (not (<= 1 |old(~a20~0)|)) .cse5 (not (<= |old(~a20~0)| 1)))))) [2020-10-13 06:09:15,934 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:09:15,934 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,934 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,934 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,934 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,934 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:09:15,934 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,934 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:09:15,935 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,936 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:09:15,937 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:09:15,938 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:09:15,939 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-13 06:09:15,940 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:09:15,940 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:09:15,940 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:09:15,940 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:09:15,940 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1)) (.cse28 (= 6 main_~input~0)) (.cse29 (= main_~input~0 4)) (.cse30 (= 3 main_~input~0)) (.cse31 (= 2 main_~input~0)) (.cse32 (= ~a17~0 1)) (.cse17 (= ~a21~0 1)) (.cse4 (= ~a20~0 1))) (let ((.cse7 (<= 1 ~a7~0)) (.cse15 (<= ~a7~0 1)) (.cse27 (<= ~a21~0 0)) (.cse16 (<= ~a20~0 0)) (.cse21 (= ~a7~0 0)) (.cse26 (not .cse4)) (.cse34 (<= 13 ~a8~0)) (.cse11 (<= ~a17~0 0)) (.cse36 (<= ~a8~0 13)) (.cse2 (not .cse17)) (.cse24 (not .cse32)) (.cse23 (= 14 ~a8~0)) (.cse18 (or (= 5 main_~input~0) .cse28 .cse29 .cse30 (= main_~input~0 1) .cse31)) (.cse20 (= 5 ~a16~0)) (.cse6 (= ~a17~0 0)) (.cse8 (<= 14 ~a8~0)) (.cse9 (<= ~a8~0 14)) (.cse10 (<= ~a16~0 4)) (.cse12 (<= 4 ~a16~0)) (.cse39 (<= ~a7~0 0)) (.cse13 (<= ~a21~0 1)) (.cse35 (<= ~a17~0 1)) (.cse14 (<= 1 ~a21~0)) (.cse22 (= ~a20~0 ~a17~0)) (.cse3 (= ~a8~0 13)) (.cse5 (= ~a16~0 4)) (.cse33 (= ~a17~0 ~a7~0)) (.cse37 (= ~a20~0 0)) (.cse38 (= ~a16~0 6)) (.cse1 (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)))) (.cse19 (= ~a8~0 15)) (.cse25 (not .cse0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and (= ~a17~0 |old(~a17~0)|) .cse17 .cse18 .cse19 .cse20 .cse21) (not (= |old(~a20~0)| 1)) (and .cse22 .cse17 .cse0 .cse19 .cse20 .cse6) (and .cse23 (<= ~a20~0 ~a7~0) .cse11 .cse4 .cse13 .cse14 .cse20 .cse15) (not (= |old(~a21~0)| 1)) (and (= ~a21~0 ~a7~0) .cse22 .cse0 .cse19 .cse5 .cse6) (and .cse17 .cse24 .cse3 .cse5 .cse25 .cse26) (and .cse0 .cse3 .cse27 .cse4 (or .cse28 (= ~a7~0 main_~input~0) (= ~a16~0 main_~input~0) .cse29 .cse30 .cse31) .cse20 .cse32) (and .cse17 .cse23 .cse20 .cse33 (= ~a20~0 ~a7~0) .cse21) (and .cse7 .cse34 (<= 1 ~a17~0) .cse10 .cse1 .cse12 .cse35 .cse15 (or (< 1 ~a21~0) .cse27) .cse36 .cse16) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse17 .cse18 .cse19 .cse5 .cse25 .cse26 .cse32) (and .cse37 .cse22 .cse17 .cse0 .cse23 .cse20) (and .cse37 .cse17 .cse1 .cse19 .cse5 .cse6) (and .cse17 .cse38 .cse3 .cse4 .cse21 .cse32) (and .cse17 .cse0 .cse3 .cse4 .cse5 .cse32) (and .cse17 .cse3 .cse4 .cse5 .cse21 .cse32) (and .cse17 .cse18 .cse19 .cse25 .cse20 .cse26) (not (= |old(~a17~0)| 1)) (and .cse34 .cse10 .cse11 .cse12 .cse39 .cse13 .cse14 .cse36) (and .cse0 .cse38 .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse17 .cse18 .cse19 .cse4 .cse5 .cse25 .cse6) (and .cse17 .cse38 .cse24 .cse1 .cse19 .cse4 .cse25) (and .cse22 .cse17 .cse23 .cse5 .cse33 .cse6) (and .cse17 .cse18 .cse19 .cse25 .cse20 .cse6) (and .cse17 .cse38 .cse1 .cse19 .cse25 .cse6) (and (<= 1 ~a20~0) .cse8 .cse9 .cse10 .cse12 .cse39 .cse13 (<= ~a20~0 1) .cse35 .cse14) (and .cse22 .cse1 .cse3 .cse5 .cse33 .cse32) (and .cse37 .cse17 .cse38 .cse1 .cse19 .cse25 .cse32)))) [2020-10-13 06:09:15,940 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:09:15,940 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:09:15,941 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse26 (= ~a7~0 1)) (.cse27 (= ~a17~0 1)) (.cse18 (= ~a20~0 1))) (let ((.cse6 (not .cse18)) (.cse7 (<= 1 ~a7~0)) (.cse15 (<= ~a7~0 1)) (.cse16 (<= ~a20~0 0)) (.cse19 (not .cse27)) (.cse1 (= ~a16~0 6)) (.cse30 (<= ~a21~0 0)) (.cse28 (<= 13 ~a8~0)) (.cse11 (<= ~a17~0 0)) (.cse31 (<= ~a8~0 13)) (.cse3 (not .cse26)) (.cse32 (not .cse0)) (.cse5 (= 5 ~a16~0)) (.cse23 (= ~a7~0 0)) (.cse17 (= 14 ~a8~0)) (.cse25 (= ~a20~0 ~a17~0)) (.cse20 (= ~a8~0 13)) (.cse22 (= ~a17~0 ~a7~0)) (.cse24 (= ~a20~0 0)) (.cse2 (= ~a8~0 15)) (.cse21 (= ~a16~0 4)) (.cse4 (= ~a17~0 0)) (.cse8 (<= 14 ~a8~0)) (.cse9 (<= ~a8~0 14)) (.cse10 (<= ~a16~0 4)) (.cse12 (<= 4 ~a16~0)) (.cse33 (<= ~a7~0 0)) (.cse13 (<= ~a21~0 1)) (.cse29 (<= ~a17~0 1)) (.cse14 (<= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse3 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (not (= |old(~a20~0)| 1)) (and .cse17 (<= ~a20~0 ~a7~0) .cse11 .cse18 .cse13 .cse14 .cse5 .cse15) (not (= |old(~a21~0)| 1)) (and .cse0 .cse19 .cse20 .cse21 .cse3 .cse6) (and .cse0 .cse17 .cse5 .cse22 (= ~a20~0 ~a7~0) .cse23) (and .cse0 .cse2 .cse3 .cse5 .cse4) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse24 .cse25 .cse0 .cse26 .cse17 .cse5) (and .cse0 .cse2 .cse21 .cse3 .cse6 .cse27) (and .cse7 .cse28 (<= 1 ~a17~0) .cse10 .cse12 .cse29 .cse15 (or (< 1 ~a21~0) .cse30) .cse31 .cse16) (and .cse0 .cse1 .cse19 .cse2 .cse18 .cse3) (and .cse0 .cse1 .cse20 .cse18 .cse23 .cse27) (and .cse26 .cse1 .cse32 .cse20 .cse18 .cse4) (and .cse24 .cse0 .cse1 .cse2 .cse3 .cse27) (and .cse26 .cse20 .cse30 .cse18 .cse5 .cse27) (and .cse25 .cse0 .cse2 .cse5 .cse4) (and .cse0 .cse20 .cse18 .cse21 .cse23 .cse27) (not (= |old(~a17~0)| 1)) (and .cse28 .cse10 .cse11 .cse12 .cse33 .cse13 .cse14 .cse31) (and .cse0 .cse2 .cse18 .cse21 .cse3 .cse4) (and .cse26 .cse32 .cse20 .cse18 .cse21 .cse4) (and (= ~a17~0 |old(~a17~0)|) .cse0 .cse2 .cse5 .cse23) (and .cse25 .cse0 .cse17 .cse21 .cse22 .cse4) (and .cse25 .cse20 .cse21 .cse22 .cse27) (and .cse24 .cse0 .cse2 .cse21 .cse4) (and (<= 1 ~a20~0) .cse8 .cse9 .cse10 .cse12 .cse33 .cse13 (<= ~a20~0 1) .cse29 .cse14)))) [2020-10-13 06:09:15,941 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:09:15,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:09:15 BoogieIcfgContainer [2020-10-13 06:09:15,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:09:15,970 INFO L168 Benchmark]: Toolchain (without parser) took 157242.46 ms. Allocated memory was 140.0 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 101.5 MB in the beginning and 209.6 MB in the end (delta: -108.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-13 06:09:15,971 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:09:15,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.89 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 171.9 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:15,971 INFO L168 Benchmark]: Boogie Preprocessor took 140.08 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 166.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:15,972 INFO L168 Benchmark]: RCFGBuilder took 1268.87 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.9 MB in the beginning and 181.3 MB in the end (delta: -14.4 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:15,972 INFO L168 Benchmark]: TraceAbstraction took 155136.00 ms. Allocated memory was 239.1 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 181.3 MB in the beginning and 209.6 MB in the end (delta: -28.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:09:15,974 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 140.0 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.89 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 171.9 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.08 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 166.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1268.87 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.9 MB in the beginning and 181.3 MB in the end (delta: -14.4 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 155136.00 ms. Allocated memory was 239.1 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 181.3 MB in the beginning and 209.6 MB in the end (delta: -28.3 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: 509]: 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: ((((((((((((((((((((((((((((((((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1))) || (((((((((1 <= a7 && 14 <= a8) && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a7 <= 1) && a20 <= 0)) || !(\old(a20) == 1)) || (((((((14 == a8 && a20 <= a7) && a17 <= 0) && a20 == 1) && a21 <= 1) && 1 <= a21) && 5 == a16) && a7 <= 1)) || !(\old(a21) == 1)) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || (((((a21 == 1 && 14 == a8) && 5 == a16) && a17 == a7) && a20 == a7) && a7 == 0)) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8)) || (((((a20 == 0 && a20 == a17) && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16)) || (((((a21 == 1 && a8 == 15) && a16 == 4) && !(a7 == 1)) && !(a20 == 1)) && a17 == 1)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13) && a20 <= 0)) || (((((a21 == 1 && a16 == 6) && !(a17 == 1)) && a8 == 15) && a20 == 1) && !(a7 == 1))) || (((((a21 == 1 && a16 == 6) && a8 == 13) && a20 == 1) && a7 == 0) && a17 == 1)) || (((((a7 == 1 && a16 == 6) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a17 == 0)) || (((((a20 == 0 && a21 == 1) && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1)) || (((((a7 == 1 && a8 == 13) && a21 <= 0) && a20 == 1) && 5 == a16) && a17 == 1)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || !(\old(a17) == 1)) || (((((((13 <= a8 && a16 <= 4) && a17 <= 0) && 4 <= a16) && a7 <= 0) && a21 <= 1) && 1 <= a21) && a8 <= 13)) || (((((a21 == 1 && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1)) && a17 == 0)) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 0)) || ((((a17 == \old(a17) && a21 == 1) && a8 == 15) && 5 == a16) && a7 == 0)) || (((((a20 == a17 && a21 == 1) && 14 == a8) && a16 == 4) && a17 == a7) && a17 == 0)) || ((((a20 == a17 && a8 == 13) && a16 == 4) && a17 == a7) && a17 == 1)) || ((((a20 == 0 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || (((((((((1 <= a20 && 14 <= a8) && a8 <= 14) && a16 <= 4) && 4 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 146.3s, OverallIterations: 32, TraceHistogramMax: 7, AutomataDifference: 59.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 9591 SDslu, 1185 SDs, 0 SdLazy, 23227 SolverSat, 1311 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 815 GetRequests, 365 SyntacticMatches, 25 SemanticMatches, 425 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 41.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=610occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 32 MinimizatonAttempts, 300 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 214 PreInvPairs, 270 NumberOfFragments, 3704 HoareAnnotationTreeSize, 214 FomulaSimplifications, 1747 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3476 FormulaSimplificationTreeSizeReductionInter, 8.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 79.0s InterpolantComputationTime, 7960 NumberOfCodeBlocks, 7960 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 7928 ConstructedInterpolants, 0 QuantifiedInterpolants, 21540613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 1 PerfectInterpolantSequences, 8321/8434 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...