/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/Problem02_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:11:33,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:11:33,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:11:33,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:11:33,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:11:33,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:11:33,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:11:33,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:11:33,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:11:33,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:11:33,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:11:33,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:11:33,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:11:33,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:11:33,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:11:33,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:11:33,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:11:33,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:11:33,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:11:33,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:11:33,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:11:33,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:11:33,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:11:33,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:11:33,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:11:33,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:11:33,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:11:33,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:11:33,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:11:33,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:11:33,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:11:33,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:11:33,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:11:33,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:11:33,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:11:33,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:11:33,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:11:33,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:11:33,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:11:33,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:11:33,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:11:33,482 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 06:11:33,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:11:33,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:11:33,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:11:33,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:11:33,521 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:11:33,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:11:33,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:11:33,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:11:33,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:11:33,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:11:33,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:11:33,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:11:33,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:11:33,524 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:11:33,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:11:33,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:11:33,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:11:33,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:11:33,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:11:33,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:11:33,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:11:33,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:11:33,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:11:33,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:11:33,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:11:33,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:11:33,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:11:33,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:11:33,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:11:33,527 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 06:11:33,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:11:33,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:11:33,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:11:33,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:11:33,843 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:11:33,844 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label35.c [2020-10-13 06:11:33,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/773941b94/0069396507e74b13b2e1a5d5b907d820/FLAGe6e455494 [2020-10-13 06:11:34,375 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:11:34,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label35.c [2020-10-13 06:11:34,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/773941b94/0069396507e74b13b2e1a5d5b907d820/FLAGe6e455494 [2020-10-13 06:11:34,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/773941b94/0069396507e74b13b2e1a5d5b907d820 [2020-10-13 06:11:34,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:11:34,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:11:34,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:11:34,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:11:34,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:11:34,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:11:34" (1/1) ... [2020-10-13 06:11:34,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:34, skipping insertion in model container [2020-10-13 06:11:34,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:11:34" (1/1) ... [2020-10-13 06:11:34,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:11:34,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:11:35,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:11:35,208 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:11:35,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:11:35,410 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:11:35,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35 WrapperNode [2020-10-13 06:11:35,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:11:35,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:11:35,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:11:35,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:11:35,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (1/1) ... [2020-10-13 06:11:35,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (1/1) ... [2020-10-13 06:11:35,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (1/1) ... [2020-10-13 06:11:35,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (1/1) ... [2020-10-13 06:11:35,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (1/1) ... [2020-10-13 06:11:35,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (1/1) ... [2020-10-13 06:11:35,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (1/1) ... [2020-10-13 06:11:35,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:11:35,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:11:35,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:11:35,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:11:35,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (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 06:11:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:11:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:11:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:11:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:11:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:11:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:11:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:11:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:11:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:11:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:11:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:11:36,659 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:11:36,660 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:11:36,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:11:36 BoogieIcfgContainer [2020-10-13 06:11:36,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:11:36,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:11:36,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:11:36,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:11:36,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:11:34" (1/3) ... [2020-10-13 06:11:36,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f4d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:11:36, skipping insertion in model container [2020-10-13 06:11:36,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:11:35" (2/3) ... [2020-10-13 06:11:36,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f4d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:11:36, skipping insertion in model container [2020-10-13 06:11:36,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:11:36" (3/3) ... [2020-10-13 06:11:36,674 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label35.c [2020-10-13 06:11:36,684 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:11:36,691 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:11:36,705 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:11:36,729 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:11:36,730 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:11:36,730 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:11:36,730 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:11:36,731 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:11:36,731 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:11:36,731 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:11:36,731 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:11:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:11:36,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 06:11:36,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:36,766 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] [2020-10-13 06:11:36,766 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:36,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:36,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1838417414, now seen corresponding path program 1 times [2020-10-13 06:11:36,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:36,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264972046] [2020-10-13 06:11:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:37,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:38,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:38,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 06:11:38,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:38,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1222 [2020-10-13 06:11:38,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:11:38,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:11:38,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:11:38,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:11:38,818 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:11:38,962 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-10-13 06:11:39,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:39,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:39,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:39,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:39,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:11:39,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:11:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:39,462 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 06:11:39,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264972046] [2020-10-13 06:11:39,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:11:39,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:11:39,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164214589] [2020-10-13 06:11:39,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:39,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:39,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:39,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:39,488 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 12 states. [2020-10-13 06:11:39,763 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2020-10-13 06:11:39,955 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2020-10-13 06:11:40,181 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2020-10-13 06:11:40,424 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2020-10-13 06:11:40,689 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-13 06:11:41,205 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-13 06:11:41,615 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-13 06:11:42,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:42,514 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:11:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:11:42,518 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 100 [2020-10-13 06:11:42,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:42,532 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:11:42,532 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:11:42,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:11:42,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:11:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:11:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:11:42,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:11:42,602 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 100 [2020-10-13 06:11:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:42,602 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:11:42,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:11:42,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 06:11:42,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:42,608 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:11:42,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:11:42,609 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:42,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:42,610 INFO L82 PathProgramCache]: Analyzing trace with hash -73079177, now seen corresponding path program 1 times [2020-10-13 06:11:42,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:42,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621700597] [2020-10-13 06:11:42,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:42,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:42,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:42,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:43,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:43,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 06:11:43,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:43,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1338 [2020-10-13 06:11:43,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:11:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:11:43,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:44,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:44,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:44,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:44,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:44,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:44,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:44,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:44,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:44,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:44,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:11:44,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:44,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:44,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:44,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:44,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:44,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:11:44,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:44,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621700597] [2020-10-13 06:11:44,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:44,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:44,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9427886] [2020-10-13 06:11:44,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:44,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:44,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:44,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:44,846 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:11:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:46,952 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:11:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:11:46,953 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2020-10-13 06:11:46,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:46,957 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:11:46,957 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:11:46,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:11:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:11:46,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:11:46,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:11:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:11:46,977 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 109 [2020-10-13 06:11:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:46,977 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:11:46,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:11:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 06:11:46,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:46,980 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:11:46,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:11:46,981 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:46,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:46,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1220059375, now seen corresponding path program 1 times [2020-10-13 06:11:46,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:46,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587137231] [2020-10-13 06:11:46,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:47,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:47,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:47,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:48,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 06:11:48,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-10-13 06:11:48,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:11:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:11:48,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:48,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:48,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:48,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:48,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:11:48,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:48,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:48,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:48,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:48,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:48,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:48,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:11:48,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:11:48,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:48,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587137231] [2020-10-13 06:11:48,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:48,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:48,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895654630] [2020-10-13 06:11:48,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:48,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:48,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:48,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:48,540 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:11:50,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:50,164 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:11:50,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:11:50,164 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 06:11:50,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:50,168 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:11:50,168 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:11:50,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:11:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:11:50,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:11:50,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:11:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:11:50,193 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 113 [2020-10-13 06:11:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:50,194 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:11:50,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:50,194 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:11:50,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 06:11:50,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:50,198 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:11:50,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:11:50,198 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:50,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:50,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1507476665, now seen corresponding path program 1 times [2020-10-13 06:11:50,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:50,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744283766] [2020-10-13 06:11:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:50,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:50,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-13 06:11:50,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:50,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-13 06:11:50,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:11:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:11:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:11:50,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:50,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:50,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:50,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:50,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:50,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:50,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:50,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:50,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:50,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:50,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:50,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:11:50,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:50,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:50,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:11:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:50,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:50,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:11:50,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:50,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:11:50,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:11:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:50,858 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:11:50,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744283766] [2020-10-13 06:11:50,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:50,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:50,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497466847] [2020-10-13 06:11:50,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:50,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:50,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:50,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:50,861 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:11:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:51,804 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:11:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:51,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-10-13 06:11:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:51,808 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:11:51,809 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:11:51,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 06:11:51,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:11:51,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:11:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:11:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:11:51,832 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 135 [2020-10-13 06:11:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:51,833 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:11:51,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:51,833 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:11:51,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 06:11:51,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:51,844 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:51,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:11:51,845 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:51,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:51,845 INFO L82 PathProgramCache]: Analyzing trace with hash -2036170618, now seen corresponding path program 1 times [2020-10-13 06:11:51,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:51,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507661253] [2020-10-13 06:11:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:51,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:51,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:53,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:53,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-13 06:11:53,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:53,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1305 [2020-10-13 06:11:53,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:53,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:53,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:11:53,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:11:53,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:53,722 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-10-13 06:11:53,885 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2020-10-13 06:11:54,120 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 47 [2020-10-13 06:11:54,303 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 43 [2020-10-13 06:11:54,486 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 39 [2020-10-13 06:11:54,645 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 36 [2020-10-13 06:11:54,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:54,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:54,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:54,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:54,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:54,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:54,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:54,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:54,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:54,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:54,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:54,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:54,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:54,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:54,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:11:54,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:11:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:54,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507661253] [2020-10-13 06:11:54,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:54,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:54,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49808563] [2020-10-13 06:11:54,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:54,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:54,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:54,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:54,941 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:11:55,444 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:11:55,689 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-10-13 06:11:56,034 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-13 06:11:56,642 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:11:57,286 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2020-10-13 06:11:57,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:57,777 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:11:57,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:11:57,777 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 134 [2020-10-13 06:11:57,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:57,782 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:11:57,782 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:11:57,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:11:57,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:11:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:11:57,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:11:57,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:11:57,818 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 134 [2020-10-13 06:11:57,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:57,819 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:11:57,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:11:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-13 06:11:57,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:57,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:57,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:11:57,825 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:57,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:57,826 INFO L82 PathProgramCache]: Analyzing trace with hash 571503649, now seen corresponding path program 1 times [2020-10-13 06:11:57,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:57,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50726211] [2020-10-13 06:11:57,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:57,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:59,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 06:11:59,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:59,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-10-13 06:11:59,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:59,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:59,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:11:59,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:11:59,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:59,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:59,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:59,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:59,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:59,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:59,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:59,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:59,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:59,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:59,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:59,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:59,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:59,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:11:59,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:59,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:11:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:59,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:59,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:11:59,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:59,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:59,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:59,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:11:59,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:59,831 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:11:59,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50726211] [2020-10-13 06:11:59,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:59,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:59,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664673141] [2020-10-13 06:11:59,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:59,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:59,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:59,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:59,835 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:12:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:01,209 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:12:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:01,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-10-13 06:12:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:01,213 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:12:01,213 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:12:01,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 06:12:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:12:01,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:12:01,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:12:01,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:12:01,234 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 142 [2020-10-13 06:12:01,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:01,234 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:12:01,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:01,234 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:12:01,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 06:12:01,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:01,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:01,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:12:01,238 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:01,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:01,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1608341724, now seen corresponding path program 1 times [2020-10-13 06:12:01,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:01,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938796589] [2020-10-13 06:12:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:01,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:02,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:02,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 06:12:02,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:12:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1101 [2020-10-13 06:12:02,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:02,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:02,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:12:02,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:12:02,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:02,713 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:12:03,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:03,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:03,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:03,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:03,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:03,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:03,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:03,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:03,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:12:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:12:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:12:03,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938796589] [2020-10-13 06:12:03,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:03,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:03,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250503875] [2020-10-13 06:12:03,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:03,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:03,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:03,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:03,341 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:12:03,741 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:12:04,303 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:12:05,416 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-13 06:12:05,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:05,737 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:12:05,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:12:05,739 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 151 [2020-10-13 06:12:05,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:05,741 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:12:05,742 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:12:05,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:12:05,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:12:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:12:05,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:12:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:12:05,764 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 151 [2020-10-13 06:12:05,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:05,764 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:12:05,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:05,764 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:12:05,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-13 06:12:05,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:05,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:05,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:12:05,768 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:05,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:05,768 INFO L82 PathProgramCache]: Analyzing trace with hash 2044416624, now seen corresponding path program 1 times [2020-10-13 06:12:05,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:05,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631358680] [2020-10-13 06:12:05,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:05,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:07,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:07,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 06:12:07,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:12:07,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1288 [2020-10-13 06:12:07,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:12:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:12:07,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:07,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:07,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:07,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:07,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:07,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:07,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:07,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:07,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:07,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:07,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:07,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:07,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:07,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:07,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:12:07,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:07,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 06:12:07,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:07,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:07,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:07,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:12:07,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:08,018 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:12:08,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631358680] [2020-10-13 06:12:08,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:08,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:08,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826286929] [2020-10-13 06:12:08,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:08,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:08,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:08,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:08,021 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:12:09,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:09,753 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:12:09,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:12:09,754 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 157 [2020-10-13 06:12:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:09,757 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:12:09,757 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:12:09,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:12:09,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:12:09,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:12:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:12:09,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:12:09,783 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 157 [2020-10-13 06:12:09,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:09,783 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:12:09,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:09,783 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:12:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 06:12:09,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:09,787 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:09,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:12:09,787 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:09,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:09,787 INFO L82 PathProgramCache]: Analyzing trace with hash 2056396730, now seen corresponding path program 1 times [2020-10-13 06:12:09,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:09,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836510944] [2020-10-13 06:12:09,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:09,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:09,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:11,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:11,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-13 06:12:11,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:12:11,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1408 [2020-10-13 06:12:11,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:11,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:11,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:12:11,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:12:11,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:11,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:11,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:11,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:11,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:11,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:11,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:12:11,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:11,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:11,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:11,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:11,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:11,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:12:11,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:11,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:11,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:11,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:11,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:12:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:11,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:11,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:11,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:12:11,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:11,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 06:12:11,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:12:11,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:12:11,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836510944] [2020-10-13 06:12:11,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:11,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:12:11,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934902619] [2020-10-13 06:12:11,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:12:11,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:11,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:12:11,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:11,592 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 6 states. [2020-10-13 06:12:12,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:12,561 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:12:12,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:12,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-10-13 06:12:12,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:12,565 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:12:12,565 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:12:12,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:12:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:12:12,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:12:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:12:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:12:12,581 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 182 [2020-10-13 06:12:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:12,582 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:12:12,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:12:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:12:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-13 06:12:12,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:12,585 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, 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] [2020-10-13 06:12:12,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:12:12,585 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:12,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:12,586 INFO L82 PathProgramCache]: Analyzing trace with hash 146329388, now seen corresponding path program 1 times [2020-10-13 06:12:12,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:12,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687095380] [2020-10-13 06:12:12,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:12,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:12,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:13,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:14,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:14,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 06:12:14,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:12:14,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2057 [2020-10-13 06:12:14,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:14,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:14,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:12:14,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:12:14,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:15,016 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-10-13 06:12:15,138 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 36 [2020-10-13 06:12:15,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:15,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:15,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:15,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:15,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:15,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:15,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:15,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:15,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:15,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:15,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:15,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:15,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:15,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:12:15,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:15,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:12:15,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:15,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:12:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:15,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:15,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:15,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:12:15,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:15,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:12:15,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:15,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:15,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:15,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:12:15,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:15,617 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:12:15,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687095380] [2020-10-13 06:12:15,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:15,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:15,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997721699] [2020-10-13 06:12:15,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:15,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:15,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:15,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:15,619 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 12 states. [2020-10-13 06:12:16,098 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:12:16,350 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:12:16,577 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:12:16,915 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2020-10-13 06:12:17,122 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-13 06:12:17,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:17,748 INFO L93 Difference]: Finished difference Result 1000 states and 1211 transitions. [2020-10-13 06:12:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:12:17,749 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2020-10-13 06:12:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:17,753 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 06:12:17,753 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:12:17,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:12:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:12:17,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2020-10-13 06:12:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:12:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 613 transitions. [2020-10-13 06:12:17,770 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 613 transitions. Word has length 193 [2020-10-13 06:12:17,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:17,771 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 613 transitions. [2020-10-13 06:12:17,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 613 transitions. [2020-10-13 06:12:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-13 06:12:17,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:17,774 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:12:17,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:12:17,775 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:17,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:17,775 INFO L82 PathProgramCache]: Analyzing trace with hash -228732130, now seen corresponding path program 1 times [2020-10-13 06:12:17,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:17,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285986666] [2020-10-13 06:12:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:17,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:17,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:18,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:18,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-13 06:12:18,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:12:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-13 06:12:18,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:12:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:12:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:18,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:18,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:18,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:18,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:18,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:18,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:18,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:18,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:18,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:18,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:12:18,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:18,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:18,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:18,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:18,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:18,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:18,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:18,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:12:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:18,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:18,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:18,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:12:18,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:18,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:12:18,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:18,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:18,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:18,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:12:18,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:12:18,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285986666] [2020-10-13 06:12:18,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:18,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:12:18,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283377541] [2020-10-13 06:12:18,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:12:18,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:18,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:12:18,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:12:18,518 INFO L87 Difference]: Start difference. First operand 534 states and 613 transitions. Second operand 6 states. [2020-10-13 06:12:19,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:19,724 INFO L93 Difference]: Finished difference Result 1245 states and 1526 transitions. [2020-10-13 06:12:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:12:19,727 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2020-10-13 06:12:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:19,731 INFO L225 Difference]: With dead ends: 1245 [2020-10-13 06:12:19,731 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:12:19,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:12:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:12:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:12:19,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:12:19,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 530 transitions. [2020-10-13 06:12:19,754 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 530 transitions. Word has length 206 [2020-10-13 06:12:19,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:19,755 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 530 transitions. [2020-10-13 06:12:19,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:12:19,755 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 530 transitions. [2020-10-13 06:12:19,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-13 06:12:19,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:19,758 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:12:19,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:12:19,759 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:19,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:19,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1830704463, now seen corresponding path program 1 times [2020-10-13 06:12:19,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:19,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782776743] [2020-10-13 06:12:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:19,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:19,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:19,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:20,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:20,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:20,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:21,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:21,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:23,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:23,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:23,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-13 06:12:23,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:12:23,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4123 [2020-10-13 06:12:23,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:12:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:12:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:12:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:24,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:24,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:24,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:24,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:24,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:24,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:24,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:24,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:24,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:24,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:12:24,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:24,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:12:24,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:24,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:24,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:12:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:24,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:24,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:24,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:12:24,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:12:24,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:24,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:24,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:24,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:24,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:12:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:24,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:24,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:24,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:12:24,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:12:24,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:12:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:12:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:12:24,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782776743] [2020-10-13 06:12:24,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:24,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:12:24,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904667152] [2020-10-13 06:12:24,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:12:24,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:24,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:12:24,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:12:24,427 INFO L87 Difference]: Start difference. First operand 458 states and 530 transitions. Second operand 13 states. [2020-10-13 06:12:26,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:26,464 INFO L93 Difference]: Finished difference Result 1152 states and 1416 transitions. [2020-10-13 06:12:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:12:26,465 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 213 [2020-10-13 06:12:26,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:26,468 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:12:26,468 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:12:26,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:12:26,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:12:26,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 461. [2020-10-13 06:12:26,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:12:26,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 541 transitions. [2020-10-13 06:12:26,483 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 541 transitions. Word has length 213 [2020-10-13 06:12:26,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:26,483 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 541 transitions. [2020-10-13 06:12:26,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:12:26,483 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 541 transitions. [2020-10-13 06:12:26,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-13 06:12:26,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:26,485 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, 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] [2020-10-13 06:12:26,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:12:26,486 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:26,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:26,486 INFO L82 PathProgramCache]: Analyzing trace with hash 466608406, now seen corresponding path program 1 times [2020-10-13 06:12:26,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:26,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443597338] [2020-10-13 06:12:26,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:26,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:26,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:27,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:27,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:27,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:27,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-13 06:12:27,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:12:27,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1397 [2020-10-13 06:12:27,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:12:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:12:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:12:27,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:28,235 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:12:28,363 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-10-13 06:12:28,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:28,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:28,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:28,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:28,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:28,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:28,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:28,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:28,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:28,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:28,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:28,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:28,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:12:28,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:28,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:28,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:28,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:28,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:28,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:28,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:12:28,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:28,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:28,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:28,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:12:28,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:12:28,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443597338] [2020-10-13 06:12:28,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:28,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:12:28,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133546998] [2020-10-13 06:12:28,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:12:28,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:28,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:12:28,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:28,838 INFO L87 Difference]: Start difference. First operand 461 states and 541 transitions. Second operand 12 states. [2020-10-13 06:12:29,822 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:12:30,046 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:12:30,272 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2020-10-13 06:12:30,458 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-10-13 06:12:31,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:31,165 INFO L93 Difference]: Finished difference Result 954 states and 1138 transitions. [2020-10-13 06:12:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:12:31,169 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 228 [2020-10-13 06:12:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:31,172 INFO L225 Difference]: With dead ends: 954 [2020-10-13 06:12:31,172 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:12:31,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:12:31,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:12:31,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:12:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:12:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 583 transitions. [2020-10-13 06:12:31,190 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 583 transitions. Word has length 228 [2020-10-13 06:12:31,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:31,190 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 583 transitions. [2020-10-13 06:12:31,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:12:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 583 transitions. [2020-10-13 06:12:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-13 06:12:31,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:31,193 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:12:31,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:12:31,193 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:31,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:31,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1851860379, now seen corresponding path program 1 times [2020-10-13 06:12:31,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:31,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856432179] [2020-10-13 06:12:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:31,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:31,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:32,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:33,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-13 06:12:33,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:12:33,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2002 [2020-10-13 06:12:33,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:33,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:33,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:12:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:12:33,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:33,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:33,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:33,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:33,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:33,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:33,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:33,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:33,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:33,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:33,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:33,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:33,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:33,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:33,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:33,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:33,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:33,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:33,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:33,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:33,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:12:33,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:33,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:33,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:33,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:33,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:12:33,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:33,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:12:33,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:33,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:12:33,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:12:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:12:33,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856432179] [2020-10-13 06:12:33,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:33,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:33,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866696809] [2020-10-13 06:12:33,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:33,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:33,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:33,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:33,853 INFO L87 Difference]: Start difference. First operand 496 states and 583 transitions. Second operand 5 states. [2020-10-13 06:12:34,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:34,694 INFO L93 Difference]: Finished difference Result 1072 states and 1301 transitions. [2020-10-13 06:12:34,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:34,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 242 [2020-10-13 06:12:34,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:34,700 INFO L225 Difference]: With dead ends: 1072 [2020-10-13 06:12:34,700 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:12:34,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 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 06:12:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:12:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:12:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:12:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 578 transitions. [2020-10-13 06:12:34,727 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 578 transitions. Word has length 242 [2020-10-13 06:12:34,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:34,728 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 578 transitions. [2020-10-13 06:12:34,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:34,728 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 578 transitions. [2020-10-13 06:12:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 06:12:34,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:34,730 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:12:34,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:12:34,731 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:34,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:34,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2125112977, now seen corresponding path program 1 times [2020-10-13 06:12:34,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:34,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775138446] [2020-10-13 06:12:34,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:34,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:34,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:36,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:36,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:36,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:38,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:38,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-13 06:12:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:12:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3359 [2020-10-13 06:12:38,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:12:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:12:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:12:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:38,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:38,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:38,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:38,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:38,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:38,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:38,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:38,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:38,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:38,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:38,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:38,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:38,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:38,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:38,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:38,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:38,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:12:38,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:38,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:38,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:38,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:38,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:38,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:38,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:38,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:38,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:38,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:38,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:12:38,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:38,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:38,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:38,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:38,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:38,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:38,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:12:38,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:38,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:38,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:38,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:12:38,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:38,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:12:38,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:12:38,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775138446] [2020-10-13 06:12:38,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:38,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:12:38,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135326721] [2020-10-13 06:12:38,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:12:38,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:38,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:12:38,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:12:38,754 INFO L87 Difference]: Start difference. First operand 496 states and 578 transitions. Second operand 13 states. [2020-10-13 06:12:39,600 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-13 06:12:39,803 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-13 06:12:40,153 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-13 06:12:40,507 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-13 06:12:41,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:41,266 INFO L93 Difference]: Finished difference Result 1366 states and 1671 transitions. [2020-10-13 06:12:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:12:41,267 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 249 [2020-10-13 06:12:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:41,271 INFO L225 Difference]: With dead ends: 1366 [2020-10-13 06:12:41,271 INFO L226 Difference]: Without dead ends: 875 [2020-10-13 06:12:41,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:12:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-10-13 06:12:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2020-10-13 06:12:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:12:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 998 transitions. [2020-10-13 06:12:41,295 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 998 transitions. Word has length 249 [2020-10-13 06:12:41,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:41,295 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 998 transitions. [2020-10-13 06:12:41,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:12:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 998 transitions. [2020-10-13 06:12:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-13 06:12:41,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:41,298 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:12:41,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:12:41,299 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:41,299 INFO L82 PathProgramCache]: Analyzing trace with hash -848663898, now seen corresponding path program 1 times [2020-10-13 06:12:41,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:41,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221049101] [2020-10-13 06:12:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:41,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:41,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:41,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:41,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-13 06:12:41,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:12:41,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-13 06:12:41,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:12:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:12:41,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:41,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:41,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:41,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:41,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:41,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:41,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:41,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:41,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:41,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:41,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:41,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:12:41,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:41,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:41,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:41,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:41,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:41,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:41,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:41,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:12:41,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:41,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:41,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:41,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:12:41,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:12:42,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221049101] [2020-10-13 06:12:42,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:42,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:42,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101212186] [2020-10-13 06:12:42,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:42,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:42,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:42,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:42,023 INFO L87 Difference]: Start difference. First operand 867 states and 998 transitions. Second operand 5 states. [2020-10-13 06:12:42,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:42,909 INFO L93 Difference]: Finished difference Result 1819 states and 2141 transitions. [2020-10-13 06:12:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:42,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2020-10-13 06:12:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:42,915 INFO L225 Difference]: With dead ends: 1819 [2020-10-13 06:12:42,915 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:12:42,917 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 06:12:42,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:12:42,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:12:42,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:12:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 983 transitions. [2020-10-13 06:12:42,938 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 983 transitions. Word has length 254 [2020-10-13 06:12:42,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:42,938 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 983 transitions. [2020-10-13 06:12:42,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:42,938 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 983 transitions. [2020-10-13 06:12:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-13 06:12:42,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:42,941 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:12:42,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:12:42,942 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:42,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:42,942 INFO L82 PathProgramCache]: Analyzing trace with hash 468722420, now seen corresponding path program 1 times [2020-10-13 06:12:42,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:42,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426011889] [2020-10-13 06:12:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:43,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:43,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:43,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:43,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:44,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:44,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:44,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-13 06:12:44,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:12:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1959 [2020-10-13 06:12:44,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:12:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:12:44,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:45,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:45,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:45,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:45,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:45,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:45,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:45,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:45,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:45,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:45,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:45,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:45,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:45,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:45,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:45,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:45,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:45,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:45,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:45,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:45,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:45,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:45,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:12:45,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:45,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:45,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:45,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:45,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:45,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:45,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:12:45,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:12:45,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:12:45,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:12:45,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426011889] [2020-10-13 06:12:45,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:45,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:45,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375933030] [2020-10-13 06:12:45,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:45,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:45,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:45,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:45,460 INFO L87 Difference]: Start difference. First operand 867 states and 983 transitions. Second operand 5 states. [2020-10-13 06:12:46,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:46,381 INFO L93 Difference]: Finished difference Result 1817 states and 2103 transitions. [2020-10-13 06:12:46,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:46,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 259 [2020-10-13 06:12:46,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:46,385 INFO L225 Difference]: With dead ends: 1817 [2020-10-13 06:12:46,386 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:12:46,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 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 06:12:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:12:46,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:12:46,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:12:46,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 970 transitions. [2020-10-13 06:12:46,422 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 970 transitions. Word has length 259 [2020-10-13 06:12:46,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:46,423 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 970 transitions. [2020-10-13 06:12:46,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:46,423 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 970 transitions. [2020-10-13 06:12:46,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-13 06:12:46,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:46,428 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:46,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:12:46,428 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:46,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:46,430 INFO L82 PathProgramCache]: Analyzing trace with hash -969159317, now seen corresponding path program 1 times [2020-10-13 06:12:46,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:46,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438802721] [2020-10-13 06:12:46,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:46,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:46,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:47,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:47,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:47,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:47,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-13 06:12:48,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 06:12:48,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1787 [2020-10-13 06:12:48,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:48,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:12:48,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:12:48,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:48,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:48,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:48,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:12:48,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:48,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:48,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:48,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:48,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:48,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:48,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:12:48,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:48,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:48,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:48,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:48,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:48,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:48,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:48,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:48,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:48,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:12:48,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:48,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:12:48,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:48,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:48,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:12:48,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:12:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:48,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:48,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:48,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:12:48,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:12:48,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:12:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:12:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:12:48,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438802721] [2020-10-13 06:12:48,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:48,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:12:48,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797898601] [2020-10-13 06:12:48,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:12:48,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:48,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:12:48,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:12:48,670 INFO L87 Difference]: Start difference. First operand 867 states and 970 transitions. Second operand 7 states. [2020-10-13 06:12:49,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:49,351 INFO L93 Difference]: Finished difference Result 1260 states and 1387 transitions. [2020-10-13 06:12:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:12:49,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 314 [2020-10-13 06:12:49,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:49,352 INFO L225 Difference]: With dead ends: 1260 [2020-10-13 06:12:49,352 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:12:49,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:12:49,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:12:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:12:49,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:12:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:12:49,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 314 [2020-10-13 06:12:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:49,357 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:12:49,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:12:49,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:12:49,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:12:49,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:12:49,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:12:50,719 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 195 DAG size of output: 143 [2020-10-13 06:12:51,605 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 175 [2020-10-13 06:12:53,258 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 253 DAG size of output: 174 [2020-10-13 06:12:53,755 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 77 [2020-10-13 06:12:54,976 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 172 DAG size of output: 110 [2020-10-13 06:12:54,983 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:12:54,985 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:12:54,985 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:12:54,985 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,985 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,986 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,986 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,986 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,986 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:12:54,986 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:12:54,986 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:12:54,986 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:12:54,987 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:12:54,988 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:12:54,989 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:12:54,989 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:12:54,989 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:12:54,989 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:12:54,989 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:12:54,989 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:12:54,989 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:12:54,990 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:12:54,990 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:12:54,990 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:12:54,990 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,991 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 454) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:12:54,992 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:12:54,993 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,994 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:12:54,995 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:12:54,996 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:12:54,997 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:12:54,998 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:12:54,999 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:12:55,000 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:12:55,000 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:12:55,000 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:12:55,000 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:12:55,000 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:12:55,000 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,000 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,000 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (= |old(~a11~0)| 1)) (.cse30 (= |old(~a19~0)| 1)) (.cse2 (= |old(~a25~0)| 1)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse34 (= ~a28~0 9)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse7 (= ~a17~0 8)) (.cse33 (= ~a25~0 1)) (.cse15 (= ~a19~0 |old(~a19~0)|)) (.cse16 (= ~a28~0 10))) (let ((.cse18 (not (<= |old(~a17~0)| 8))) (.cse19 (not (<= |old(~a11~0)| 1))) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse21 (not (<= 1 |old(~a11~0)|))) (.cse22 (= ~a17~0 |old(~a17~0)|)) (.cse23 (<= 1 ~a11~0)) (.cse24 (<= ~a11~0 1)) (.cse13 (not (= |old(~a19~0)| |old(~a25~0)|))) (.cse11 (not (= 10 |old(~a28~0)|))) (.cse1 (not (= 0 |old(~a19~0)|))) (.cse29 (and .cse5 .cse7 .cse33 .cse15 .cse16)) (.cse0 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse27 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse25 (not (<= |old(~a25~0)| 0))) (.cse31 (not (= 9 |old(~a28~0)|))) (.cse32 (and .cse5 .cse6 .cse7 .cse34 .cse15)) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse14 (= 7 ~a17~0)) (.cse8 (= 7 ~a28~0)) (.cse28 (not .cse2)) (.cse12 (not (= 7 |old(~a17~0)|))) (.cse26 (not .cse30)) (.cse9 (not (= ~a21~0 1))) (.cse10 (not (= 7 |old(~a28~0)|))) (.cse17 (not .cse4))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~a19~0 0) .cse5 .cse6 .cse7 .cse8) .cse9 .cse10) (or .cse11 .cse12 .cse1 .cse13 .cse9 (and .cse14 .cse5 (= ~a25~0 ~a19~0) .cse15 .cse16) .cse17) (or (not (<= |old(~a25~0)| 1)) (not (<= |old(~a19~0)| 1)) .cse18 .cse19 .cse20 (not (<= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 9)) .cse9 .cse21 (not (<= 1 |old(~a25~0)|)) (and .cse22 .cse23 (<= 9 ~a28~0) (<= 1 ~a25~0) .cse24 (<= ~a28~0 9) (<= ~a25~0 1) .cse15) (not (<= 9 |old(~a28~0)|))) (or (not (<= |old(~a28~0)| 7)) .cse18 (and (not (< 1 |old(~a19~0)|)) (not (<= |old(~a19~0)| 0))) .cse19 .cse20 (not (<= 7 |old(~a28~0)|)) .cse25 .cse9 .cse21 (and .cse22 .cse23 (<= 7 ~a28~0) .cse6 .cse24 (<= ~a28~0 7) .cse15)) (or .cse11 .cse26 .cse3 .cse4 .cse9 .cse27 (and .cse5 .cse6 .cse7 .cse15 .cse16)) (or .cse28 .cse11 .cse13 .cse3 .cse29 .cse9) (or .cse0 .cse28 .cse11 .cse1 .cse3 .cse4 .cse29 .cse9) (or .cse0 (and .cse5 .cse6 .cse7 (= ~a28~0 8) .cse15) .cse30 .cse3 (not (= 0 |old(~a25~0)|)) .cse4 .cse9 (not (= 8 |old(~a28~0)|))) (or .cse26 (and .cse5 .cse6 .cse7 .cse8 .cse15) .cse3 .cse25 .cse9 .cse27 .cse10 (not (<= |old(~a11~0)| 0))) (or .cse26 .cse3 .cse4 .cse31 .cse9 .cse27 .cse32) (or .cse30 .cse28 .cse12 (and .cse14 .cse5 .cse33 .cse34 .cse15) .cse31 .cse9 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse26 (not (<= |old(~a19~0)| |old(~a11~0)|)) .cse3 .cse25 (not (< |old(~a11~0)| (+ |old(~a19~0)| 1))) .cse31 .cse9 .cse32) (or .cse28 .cse26 (and (= ~a28~0 |old(~a28~0)|) .cse5 .cse7 .cse33 .cse15) .cse3 .cse4 .cse9) (or (and .cse14 .cse5 .cse8 .cse33 .cse15) .cse28 .cse12 .cse26 .cse9 .cse10 .cse17)))) [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:12:55,001 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:12:55,002 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,003 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:12:55,004 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a19~0 1) (= ~a21~0 1) (= ~a17~0 8) (<= ~a25~0 0) (= ~a28~0 7)) [2020-10-13 06:12:55,005 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:12:55,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:12:55,005 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a11~0)| 0))) [2020-10-13 06:12:55,006 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse6 (= ~a11~0 1))) (let ((.cse0 (<= 8 ~a17~0)) (.cse1 (<= ~a17~0 8)) (.cse10 (= ~a19~0 0)) (.cse4 (= 7 ~a28~0)) (.cse9 (not .cse6)) (.cse2 (= 7 ~a17~0)) (.cse12 (not .cse3)) (.cse8 (= ~a28~0 9)) (.cse7 (= ~a17~0 8)) (.cse5 (= ~a25~0 1)) (.cse13 (= ~a25~0 ~a19~0)) (.cse11 (= ~a28~0 10))) (or (and (<= 1 ~a11~0) (<= 7 ~a28~0) (<= ~a11~0 1) .cse0 (<= ~a28~0 7) .cse1 (<= ~a25~0 0) (or (<= ~a19~0 0) (< 1 ~a19~0))) (and .cse2 .cse3 .cse4 .cse5 .cse6) (not (= |old(~a19~0)| 1)) (and .cse3 .cse7 .cse8 .cse9) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse10 .cse7 .cse5 .cse9 .cse11) (and (= ~a25~0 0) .cse7 .cse12 .cse9 (= ~a28~0 8)) (and .cse10 .cse7 .cse4 .cse9 (not .cse5)) (and (<= 9 ~a28~0) .cse0 (<= ~a19~0 1) (<= ~a28~0 9) .cse1 (<= ~a25~0 1) (<= 1 ~a19~0)) (and .cse10 .cse2 .cse6 .cse13 .cse11) (and .cse3 .cse7 .cse9 .cse11) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse7 .cse4 (= ~a19~0 |old(~a19~0)|)) (and .cse3 .cse7 .cse5 .cse9) (and (= ~a25~0 ~a11~0) .cse2 .cse12 .cse5 .cse8) (not (= ~a21~0 1)) (and .cse7 .cse5 .cse13 .cse11) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a11~0)| 0))))) [2020-10-13 06:12:55,006 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:12:55,006 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:12:55,006 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (= ~a11~0 1)) (.cse4 (= ~a19~0 1))) (let ((.cse2 (<= ~a25~0 0)) (.cse3 (= 7 ~a17~0)) (.cse10 (not .cse4)) (.cse14 (= ~a25~0 ~a19~0)) (.cse15 (= ~a28~0 10)) (.cse8 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse13 (= ~a19~0 0)) (.cse5 (= 7 ~a28~0)) (.cse6 (= ~a25~0 1)) (.cse0 (<= 8 ~a17~0)) (.cse1 (<= ~a17~0 8)) (.cse9 (= ~a17~0 8)) (.cse16 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (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)))) (.cse12 (= ~a28~0 9)) (.cse11 (not .cse7))) (or (and (<= 1 ~a11~0) (<= 7 ~a28~0) (<= ~a11~0 1) .cse0 (<= ~a28~0 7) .cse1 .cse2 (or (<= ~a19~0 0) (< 1 ~a19~0))) (and .cse3 .cse4 .cse5 .cse6 .cse7) (not (= |old(~a19~0)| 1)) (and .cse8 (= ~a25~0 0) .cse9 .cse10 .cse11 (= ~a28~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse4 (<= ~a19~0 ~a11~0) .cse9 .cse12 (< ~a11~0 (+ ~a19~0 1)) .cse2) (and .cse13 .cse3 .cse7 .cse14 .cse15) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse9 .cse5 .cse16 (= ~a19~0 |old(~a19~0)|)) (and .cse4 .cse9 .cse16 .cse11 .cse15) (and .cse4 .cse9 .cse6 .cse11) (and (= ~a25~0 ~a11~0) .cse3 .cse10 .cse6 .cse12) (not (= ~a21~0 1)) (and .cse9 .cse6 .cse14 .cse15) (and .cse8 .cse13 .cse9 .cse6 .cse11 .cse15) (and .cse8 .cse13 .cse9 .cse5 .cse11 (not .cse6)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a11~0)| 0)) (and (<= 9 ~a28~0) (<= 1 ~a25~0) .cse0 (<= ~a19~0 1) (<= ~a28~0 9) .cse1 (<= ~a25~0 1) (<= 1 ~a19~0)) (and .cse4 .cse9 .cse16 .cse12 .cse11)))) [2020-10-13 06:12:55,006 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:12:55,006 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:12:55,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:12:55 BoogieIcfgContainer [2020-10-13 06:12:55,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:12:55,052 INFO L168 Benchmark]: Toolchain (without parser) took 80363.80 ms. Allocated memory was 141.0 MB in the beginning and 1.0 GB in the end (delta: 867.2 MB). Free memory was 102.3 MB in the beginning and 919.9 MB in the end (delta: -817.6 MB). Peak memory consumption was 887.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:55,053 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:12:55,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.76 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 172.5 MB in the end (delta: -70.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:55,054 INFO L168 Benchmark]: Boogie Preprocessor took 94.64 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 167.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:55,054 INFO L168 Benchmark]: RCFGBuilder took 1158.22 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 167.5 MB in the beginning and 178.9 MB in the end (delta: -11.4 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:55,056 INFO L168 Benchmark]: TraceAbstraction took 78383.34 ms. Allocated memory was 237.0 MB in the beginning and 1.0 GB in the end (delta: 771.2 MB). Free memory was 178.9 MB in the beginning and 919.9 MB in the end (delta: -741.0 MB). Peak memory consumption was 868.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:55,062 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 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.76 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 172.5 MB in the end (delta: -70.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.64 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 167.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1158.22 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 167.5 MB in the beginning and 178.9 MB in the end (delta: -11.4 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 78383.34 ms. Allocated memory was 237.0 MB in the beginning and 1.0 GB in the end (delta: 771.2 MB). Free memory was 178.9 MB in the beginning and 919.9 MB in the end (delta: -741.0 MB). Peak memory consumption was 868.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 454]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((1 <= a11 && 7 <= a28) && a11 <= 1) && 8 <= a17) && a28 <= 7) && a17 <= 8) && a25 <= 0) && (a19 <= 0 || 1 < a19)) || ((((7 == a17 && a19 == 1) && 7 == a28) && a25 == 1) && a11 == 1)) || !(\old(a19) == 1)) || (((a19 == 1 && a17 == 8) && a28 == 9) && !(a11 == 1))) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || ((((a19 == 0 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 10)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || ((((a19 == 0 && a17 == 8) && 7 == a28) && !(a11 == 1)) && !(a25 == 1))) || ((((((9 <= a28 && 8 <= a17) && a19 <= 1) && a28 <= 9) && a17 <= 8) && a25 <= 1) && 1 <= a19)) || ((((a19 == 0 && 7 == a17) && a11 == 1) && a25 == a19) && a28 == 10)) || (((a19 == 1 && a17 == 8) && !(a11 == 1)) && a28 == 10)) || ((((a11 == \old(a11) && a25 == \old(a25)) && a17 == 8) && 7 == a28) && a19 == \old(a19))) || (((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1))) || ((((a25 == a11 && 7 == a17) && !(a19 == 1)) && a25 == 1) && a28 == 9)) || !(a21 == 1)) || (((a17 == 8 && a25 == 1) && a25 == a19) && a28 == 10)) || !(7 == \old(a28))) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 72.6s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 30.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 676 SDtfs, 7140 SDslu, 992 SDs, 0 SdLazy, 15076 SolverSat, 1277 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 153 SyntacticMatches, 11 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 124 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 109 PreInvPairs, 148 NumberOfFragments, 1600 HoareAnnotationTreeSize, 109 FomulaSimplifications, 18088445 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5244756 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 37.8s InterpolantComputationTime, 3381 NumberOfCodeBlocks, 3381 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3363 ConstructedInterpolants, 0 QuantifiedInterpolants, 7992170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 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...