/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:05:17,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:05:17,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:05:17,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:05:17,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:05:17,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:05:17,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:05:17,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:05:17,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:05:17,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:05:17,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:05:17,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:05:17,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:05:17,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:05:17,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:05:17,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:05:17,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:05:17,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:05:17,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:05:17,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:05:17,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:05:17,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:05:17,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:05:17,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:05:17,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:05:17,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:05:17,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:05:17,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:05:17,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:05:17,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:05:17,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:05:17,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:05:17,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:05:17,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:05:17,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:05:17,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:05:17,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:05:17,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:05:17,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:05:17,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:05:17,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:05:17,403 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 [2020-10-12 11:05:17,449 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:05:17,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:05:17,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:05:17,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:05:17,451 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:05:17,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:05:17,451 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:05:17,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:05:17,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:05:17,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:05:17,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:05:17,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:05:17,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:05:17,453 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:05:17,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:05:17,454 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:05:17,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:05:17,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:05:17,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:05:17,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:05:17,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:05:17,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:05:17,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:05:17,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:05:17,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:05:17,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:05:17,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:05:17,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:05:17,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:05:17,458 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:05:17,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:05:17,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:05:17,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:05:17,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:05:17,813 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:05:17,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label21.c [2020-10-12 11:05:17,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b03fd1fae/c46f020581a745698b87b58c9e6674aa/FLAGc2bf22576 [2020-10-12 11:05:18,473 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:05:18,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label21.c [2020-10-12 11:05:18,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b03fd1fae/c46f020581a745698b87b58c9e6674aa/FLAGc2bf22576 [2020-10-12 11:05:18,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b03fd1fae/c46f020581a745698b87b58c9e6674aa [2020-10-12 11:05:18,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:05:18,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:05:18,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:05:18,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:05:18,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:05:18,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:05:18" (1/1) ... [2020-10-12 11:05:18,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6698ff07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:18, skipping insertion in model container [2020-10-12 11:05:18,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:05:18" (1/1) ... [2020-10-12 11:05:18,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:05:18,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:05:19,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:05:19,262 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:05:19,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:05:19,468 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:05:19,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19 WrapperNode [2020-10-12 11:05:19,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:05:19,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:05:19,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:05:19,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:05:19,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (1/1) ... [2020-10-12 11:05:19,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (1/1) ... [2020-10-12 11:05:19,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (1/1) ... [2020-10-12 11:05:19,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (1/1) ... [2020-10-12 11:05:19,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (1/1) ... [2020-10-12 11:05:19,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (1/1) ... [2020-10-12 11:05:19,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (1/1) ... [2020-10-12 11:05:19,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:05:19,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:05:19,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:05:19,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:05:19,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (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 [2020-10-12 11:05:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:05:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:05:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:05:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:05:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:05:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:05:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:05:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:05:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:05:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:05:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:05:20,820 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:05:20,821 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:05:20,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:05:20 BoogieIcfgContainer [2020-10-12 11:05:20,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:05:20,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:05:20,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:05:20,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:05:20,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:05:18" (1/3) ... [2020-10-12 11:05:20,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b36f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:05:20, skipping insertion in model container [2020-10-12 11:05:20,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:05:19" (2/3) ... [2020-10-12 11:05:20,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b36f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:05:20, skipping insertion in model container [2020-10-12 11:05:20,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:05:20" (3/3) ... [2020-10-12 11:05:20,835 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label21.c [2020-10-12 11:05:20,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:05:20,854 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:05:20,868 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:05:20,892 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:05:20,893 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:05:20,894 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:05:20,894 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:05:20,894 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:05:20,894 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:05:20,894 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:05:20,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:05:20,919 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:05:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 11:05:20,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:20,931 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] [2020-10-12 11:05:20,932 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:20,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:20,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1860977577, now seen corresponding path program 1 times [2020-10-12 11:05:20,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:20,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862855051] [2020-10-12 11:05:20,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:21,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:21,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:22,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:22,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 11:05:22,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:22,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1637 [2020-10-12 11:05:22,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:05:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:05:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:05:22,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:05:23,663 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-12 11:05:23,983 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-10-12 11:05:24,231 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2020-10-12 11:05:24,493 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 46 [2020-10-12 11:05:24,779 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 43 [2020-10-12 11:05:25,005 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 40 [2020-10-12 11:05:25,211 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 35 [2020-10-12 11:05:25,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:25,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:25,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:25,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:25,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:25,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:05:25,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:25,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:05:25,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:05:25,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862855051] [2020-10-12 11:05:25,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:05:25,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 11:05:25,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168811417] [2020-10-12 11:05:25,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:05:25,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:25,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:05:25,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:05:25,490 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-12 11:05:25,859 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 11:05:26,027 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 11:05:26,236 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 11:05:26,608 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-12 11:05:26,993 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 111 [2020-10-12 11:05:27,572 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 108 [2020-10-12 11:05:28,183 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2020-10-12 11:05:28,653 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 100 [2020-10-12 11:05:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:29,644 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:05:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:05:29,647 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-12 11:05:29,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:29,662 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:05:29,662 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:05:29,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:05:29,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:05:29,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:05:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:05:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:05:29,739 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 89 [2020-10-12 11:05:29,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:29,740 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:05:29,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:05:29,740 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:05:29,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 11:05:29,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:29,746 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:29,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:05:29,746 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:29,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:29,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1282641372, now seen corresponding path program 1 times [2020-10-12 11:05:29,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:29,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274339131] [2020-10-12 11:05:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:29,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:29,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:31,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 11:05:31,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:05:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1240 [2020-10-12 11:05:31,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:05:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:05:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:31,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:31,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:31,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:31,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:31,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:31,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:31,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:05:31,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:31,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:05:31,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:31,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:31,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:31,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:05:31,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:05:31,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274339131] [2020-10-12 11:05:31,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:31,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:05:31,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257439816] [2020-10-12 11:05:31,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:05:31,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:31,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:05:31,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:31,806 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:05:32,598 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:05:33,359 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 11:05:33,689 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-12 11:05:34,111 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-12 11:05:34,332 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:05:34,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:34,950 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:05:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:05:34,951 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2020-10-12 11:05:34,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:34,956 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:05:34,956 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:05:34,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:05:34,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:05:35,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:05:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:05:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:05:35,013 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 97 [2020-10-12 11:05:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:35,013 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:05:35,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:05:35,014 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:05:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-12 11:05:35,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:35,017 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:35,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:05:35,017 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:35,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:35,018 INFO L82 PathProgramCache]: Analyzing trace with hash 899392414, now seen corresponding path program 1 times [2020-10-12 11:05:35,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:35,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416349099] [2020-10-12 11:05:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 11:05:35,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555 [2020-10-12 11:05:35,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:05:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:05:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 11:05:35,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:35,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:35,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:05:35,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:05:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:35,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:35,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:05:35,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:05:35,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:05:35,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416349099] [2020-10-12 11:05:35,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:35,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:05:35,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159993648] [2020-10-12 11:05:35,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:05:35,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:35,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:05:35,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:05:35,849 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:05:37,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:37,027 INFO L93 Difference]: Finished difference Result 627 states and 851 transitions. [2020-10-12 11:05:37,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 11:05:37,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2020-10-12 11:05:37,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:37,032 INFO L225 Difference]: With dead ends: 627 [2020-10-12 11:05:37,032 INFO L226 Difference]: Without dead ends: 417 [2020-10-12 11:05:37,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:05:37,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-10-12 11:05:37,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 415. [2020-10-12 11:05:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-12 11:05:37,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 540 transitions. [2020-10-12 11:05:37,062 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 540 transitions. Word has length 100 [2020-10-12 11:05:37,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:37,062 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 540 transitions. [2020-10-12 11:05:37,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:05:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 540 transitions. [2020-10-12 11:05:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 11:05:37,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:37,066 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:37,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:05:37,067 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:37,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:37,067 INFO L82 PathProgramCache]: Analyzing trace with hash 354950771, now seen corresponding path program 1 times [2020-10-12 11:05:37,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:37,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364561402] [2020-10-12 11:05:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:37,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:37,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:37,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:39,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:41,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:41,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 11:05:41,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:05:41,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4524 [2020-10-12 11:05:41,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:41,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:41,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:05:41,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:05:41,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:42,056 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-12 11:05:42,236 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-12 11:05:42,468 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 50 [2020-10-12 11:05:42,690 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 46 [2020-10-12 11:05:42,905 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 42 [2020-10-12 11:05:43,104 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 38 [2020-10-12 11:05:43,286 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 34 [2020-10-12 11:05:43,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:43,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:43,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:43,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:43,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:43,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:43,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:43,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:43,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:43,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:43,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:43,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:43,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:43,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:43,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:43,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:43,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:43,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:43,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:05:43,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:43,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:05:43,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:43,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:43,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:43,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:05:43,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:43,564 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:05:43,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364561402] [2020-10-12 11:05:43,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:43,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:05:43,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244118997] [2020-10-12 11:05:43,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:05:43,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:43,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:05:43,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:43,568 INFO L87 Difference]: Start difference. First operand 415 states and 540 transitions. Second operand 13 states. [2020-10-12 11:05:44,019 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-12 11:05:44,220 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 11:05:44,699 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2020-10-12 11:05:45,116 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2020-10-12 11:05:45,499 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 106 [2020-10-12 11:05:46,269 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2020-10-12 11:05:46,933 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 98 [2020-10-12 11:05:47,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:47,566 INFO L93 Difference]: Finished difference Result 843 states and 1161 transitions. [2020-10-12 11:05:47,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:05:47,567 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-12 11:05:47,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:47,573 INFO L225 Difference]: With dead ends: 843 [2020-10-12 11:05:47,573 INFO L226 Difference]: Without dead ends: 494 [2020-10-12 11:05:47,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:05:47,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-12 11:05:47,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 488. [2020-10-12 11:05:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-12 11:05:47,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 621 transitions. [2020-10-12 11:05:47,610 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 621 transitions. Word has length 109 [2020-10-12 11:05:47,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:47,612 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 621 transitions. [2020-10-12 11:05:47,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:05:47,613 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 621 transitions. [2020-10-12 11:05:47,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-12 11:05:47,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:47,624 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 11:05:47,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:05:47,625 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:47,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:47,625 INFO L82 PathProgramCache]: Analyzing trace with hash 973113403, now seen corresponding path program 1 times [2020-10-12 11:05:47,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:47,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740229216] [2020-10-12 11:05:47,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:47,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:48,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:49,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 11:05:49,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:05:49,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1542 [2020-10-12 11:05:49,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:05:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:05:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 11:05:49,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:05:49,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:49,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:49,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:49,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:05:49,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:05:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-12 11:05:49,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:49,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:49,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:49,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:49,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:05:49,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:49,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:49,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:05:49,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:49,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:49,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:49,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:05:49,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:49,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:05:49,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:05:49,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:05:49,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740229216] [2020-10-12 11:05:49,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:49,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:05:49,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990764082] [2020-10-12 11:05:49,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:05:49,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:49,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:05:49,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:05:49,502 INFO L87 Difference]: Start difference. First operand 488 states and 621 transitions. Second operand 8 states. [2020-10-12 11:05:51,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:51,009 INFO L93 Difference]: Finished difference Result 1067 states and 1393 transitions. [2020-10-12 11:05:51,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:05:51,012 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-12 11:05:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:51,018 INFO L225 Difference]: With dead ends: 1067 [2020-10-12 11:05:51,018 INFO L226 Difference]: Without dead ends: 645 [2020-10-12 11:05:51,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:51,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2020-10-12 11:05:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 637. [2020-10-12 11:05:51,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2020-10-12 11:05:51,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 807 transitions. [2020-10-12 11:05:51,069 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 807 transitions. Word has length 120 [2020-10-12 11:05:51,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:51,070 INFO L479 AbstractCegarLoop]: Abstraction has 637 states and 807 transitions. [2020-10-12 11:05:51,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:05:51,070 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 807 transitions. [2020-10-12 11:05:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 11:05:51,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:51,076 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:51,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:05:51,077 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:51,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:51,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1571511583, now seen corresponding path program 1 times [2020-10-12 11:05:51,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:51,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097234191] [2020-10-12 11:05:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:51,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:51,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:53,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:55,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:55,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 11:05:55,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:05:55,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4163 [2020-10-12 11:05:55,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-12 11:05:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 11:05:55,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:55,742 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-10-12 11:05:55,930 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-10-12 11:05:56,200 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2020-10-12 11:05:56,476 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2020-10-12 11:05:56,651 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2020-10-12 11:05:56,810 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2020-10-12 11:05:56,984 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 37 [2020-10-12 11:05:57,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:57,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:57,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:57,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:57,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:57,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:57,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:57,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:57,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:57,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:57,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:57,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:57,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:57,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:57,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:57,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:57,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:57,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:57,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:57,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:57,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:57,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 11:05:57,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:57,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:05:57,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 11:05:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:05:57,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097234191] [2020-10-12 11:05:57,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:57,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:05:57,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858043534] [2020-10-12 11:05:57,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:05:57,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:57,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:05:57,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:57,250 INFO L87 Difference]: Start difference. First operand 637 states and 807 transitions. Second operand 13 states. [2020-10-12 11:05:57,664 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2020-10-12 11:05:57,868 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-12 11:05:58,031 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-12 11:05:58,528 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-10-12 11:05:59,019 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-12 11:05:59,299 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-10-12 11:05:59,572 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:05:59,862 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-12 11:06:00,412 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 89 [2020-10-12 11:06:00,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:00,885 INFO L93 Difference]: Finished difference Result 1272 states and 1669 transitions. [2020-10-12 11:06:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 11:06:00,889 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-12 11:06:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:00,894 INFO L225 Difference]: With dead ends: 1272 [2020-10-12 11:06:00,894 INFO L226 Difference]: Without dead ends: 701 [2020-10-12 11:06:00,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2020-10-12 11:06:00,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-10-12 11:06:00,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 693. [2020-10-12 11:06:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-12 11:06:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 874 transitions. [2020-10-12 11:06:00,931 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 874 transitions. Word has length 131 [2020-10-12 11:06:00,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:00,932 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 874 transitions. [2020-10-12 11:06:00,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:06:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 874 transitions. [2020-10-12 11:06:00,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 11:06:00,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:00,936 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:06:00,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:06:00,936 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:00,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1214363485, now seen corresponding path program 1 times [2020-10-12 11:06:00,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:00,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072242263] [2020-10-12 11:06:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:00,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:01,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:01,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:03,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:03,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:05,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:05,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 11:06:05,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:06:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4495 [2020-10-12 11:06:05,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:06:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:06:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:06:05,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:05,860 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-10-12 11:06:06,015 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-10-12 11:06:06,263 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-10-12 11:06:06,422 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2020-10-12 11:06:06,581 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-10-12 11:06:06,741 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-10-12 11:06:06,888 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 33 [2020-10-12 11:06:06,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:06,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:06,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:06,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:06,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:06,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:06:06,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:06,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:06,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:06,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:06,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:06,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:06:06,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:06,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:06:06,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:06,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:06,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:06,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:06:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:07,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:07,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:07,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:06:07,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:07,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 11:06:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:06:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:06:07,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072242263] [2020-10-12 11:06:07,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:07,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:06:07,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326468598] [2020-10-12 11:06:07,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:06:07,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:07,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:06:07,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:06:07,138 INFO L87 Difference]: Start difference. First operand 693 states and 874 transitions. Second operand 13 states. [2020-10-12 11:06:07,620 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-12 11:06:07,770 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 11:06:08,212 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:06:08,672 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-12 11:06:08,980 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-12 11:06:09,403 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-12 11:06:09,837 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-12 11:06:10,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:10,119 INFO L93 Difference]: Finished difference Result 1384 states and 1813 transitions. [2020-10-12 11:06:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:06:10,122 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 133 [2020-10-12 11:06:10,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:10,126 INFO L225 Difference]: With dead ends: 1384 [2020-10-12 11:06:10,126 INFO L226 Difference]: Without dead ends: 757 [2020-10-12 11:06:10,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:06:10,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2020-10-12 11:06:10,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 757. [2020-10-12 11:06:10,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 757 states. [2020-10-12 11:06:10,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 947 transitions. [2020-10-12 11:06:10,152 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 947 transitions. Word has length 133 [2020-10-12 11:06:10,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:10,153 INFO L479 AbstractCegarLoop]: Abstraction has 757 states and 947 transitions. [2020-10-12 11:06:10,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:06:10,153 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 947 transitions. [2020-10-12 11:06:10,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-12 11:06:10,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:10,156 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:06:10,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:06:10,156 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:10,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:10,157 INFO L82 PathProgramCache]: Analyzing trace with hash 298551124, now seen corresponding path program 1 times [2020-10-12 11:06:10,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:10,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22746530] [2020-10-12 11:06:10,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:10,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:10,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:10,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-12 11:06:14,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:06:14,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4315 [2020-10-12 11:06:14,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 11:06:14,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:06:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:06:14,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:14,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:06:14,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:06:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:06:14,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:06:14,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:06:14,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:06:14,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:06:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 11:06:14,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:06:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 11:06:14,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 11:06:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 11:06:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:06:14,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:06:14,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:06:14,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 53 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 11:06:14,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22746530] [2020-10-12 11:06:14,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:14,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:06:14,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977161776] [2020-10-12 11:06:14,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:06:14,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:14,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:06:14,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:06:14,885 INFO L87 Difference]: Start difference. First operand 757 states and 947 transitions. Second operand 8 states. [2020-10-12 11:06:16,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:16,311 INFO L93 Difference]: Finished difference Result 1474 states and 1883 transitions. [2020-10-12 11:06:16,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:06:16,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-10-12 11:06:16,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:16,317 INFO L225 Difference]: With dead ends: 1474 [2020-10-12 11:06:16,317 INFO L226 Difference]: Without dead ends: 783 [2020-10-12 11:06:16,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:06:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-10-12 11:06:16,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 759. [2020-10-12 11:06:16,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-10-12 11:06:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 914 transitions. [2020-10-12 11:06:16,355 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 914 transitions. Word has length 138 [2020-10-12 11:06:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:16,355 INFO L479 AbstractCegarLoop]: Abstraction has 759 states and 914 transitions. [2020-10-12 11:06:16,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:06:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 914 transitions. [2020-10-12 11:06:16,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-12 11:06:16,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:16,359 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:06:16,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:06:16,359 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:16,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1931586351, now seen corresponding path program 1 times [2020-10-12 11:06:16,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:16,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444541024] [2020-10-12 11:06:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:16,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:16,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:16,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:18,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:19,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:20,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:20,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 11:06:20,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:06:20,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3828 [2020-10-12 11:06:20,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:20,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:06:20,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 11:06:20,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:06:20,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:20,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:20,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:20,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:20,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:20,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:20,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:06:20,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:21,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:21,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:21,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:21,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:06:21,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:21,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:06:21,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:21,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:21,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:06:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:21,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:21,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:21,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:06:21,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:06:21,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:06:21,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:06:21,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444541024] [2020-10-12 11:06:21,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:21,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 11:06:21,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019257755] [2020-10-12 11:06:21,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 11:06:21,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:21,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 11:06:21,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-12 11:06:21,144 INFO L87 Difference]: Start difference. First operand 759 states and 914 transitions. Second operand 14 states. [2020-10-12 11:06:21,843 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-12 11:06:22,103 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 11:06:22,519 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:06:22,967 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:06:23,253 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-12 11:06:23,622 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-12 11:06:23,877 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-12 11:06:24,351 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 11:06:24,636 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-12 11:06:25,025 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 11:06:25,297 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-12 11:06:25,558 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-12 11:06:25,951 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-12 11:06:26,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:26,034 INFO L93 Difference]: Finished difference Result 1570 states and 1968 transitions. [2020-10-12 11:06:26,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 11:06:26,035 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 139 [2020-10-12 11:06:26,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:26,039 INFO L225 Difference]: With dead ends: 1570 [2020-10-12 11:06:26,039 INFO L226 Difference]: Without dead ends: 877 [2020-10-12 11:06:26,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-12 11:06:26,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-12 11:06:26,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 819. [2020-10-12 11:06:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-10-12 11:06:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 983 transitions. [2020-10-12 11:06:26,068 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 983 transitions. Word has length 139 [2020-10-12 11:06:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:26,069 INFO L479 AbstractCegarLoop]: Abstraction has 819 states and 983 transitions. [2020-10-12 11:06:26,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 11:06:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 983 transitions. [2020-10-12 11:06:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 11:06:26,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:26,072 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:06:26,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:06:26,072 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:26,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:26,073 INFO L82 PathProgramCache]: Analyzing trace with hash -571967435, now seen corresponding path program 1 times [2020-10-12 11:06:26,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:26,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512827050] [2020-10-12 11:06:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:26,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:26,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:26,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:26,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:26,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:28,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:28,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 11:06:28,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:06:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2767 [2020-10-12 11:06:28,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:06:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:06:28,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:06:28,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:29,557 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2020-10-12 11:06:29,735 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 39 [2020-10-12 11:06:29,947 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2020-10-12 11:06:30,178 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2020-10-12 11:06:30,421 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 47 [2020-10-12 11:06:30,636 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2020-10-12 11:06:30,873 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 42 [2020-10-12 11:06:31,100 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 40 [2020-10-12 11:06:31,304 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2020-10-12 11:06:31,485 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 29 [2020-10-12 11:06:31,666 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 32 [2020-10-12 11:06:31,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:31,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:31,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:31,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:31,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:31,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:06:31,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:31,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:31,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:31,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:31,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:31,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:06:31,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:31,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:06:31,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:06:31,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:31,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:06:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:31,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:31,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:31,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:06:31,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:31,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 11:06:31,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:06:31,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:06:32,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512827050] [2020-10-12 11:06:32,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:32,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:06:32,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521475871] [2020-10-12 11:06:32,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:06:32,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:32,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:06:32,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:06:32,150 INFO L87 Difference]: Start difference. First operand 819 states and 983 transitions. Second operand 20 states. [2020-10-12 11:06:32,468 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-12 11:06:32,615 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 11:06:33,053 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2020-10-12 11:06:33,423 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2020-10-12 11:06:33,801 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-10-12 11:06:34,228 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2020-10-12 11:06:34,590 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2020-10-12 11:06:34,975 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-12 11:06:35,279 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-10-12 11:06:35,720 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-12 11:06:36,031 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2020-10-12 11:06:36,423 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2020-10-12 11:06:36,685 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2020-10-12 11:06:36,985 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2020-10-12 11:06:37,379 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-10-12 11:06:37,638 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-10-12 11:06:38,351 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-12 11:06:38,575 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-12 11:06:39,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:39,036 INFO L93 Difference]: Finished difference Result 1679 states and 2061 transitions. [2020-10-12 11:06:39,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:06:39,039 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 147 [2020-10-12 11:06:39,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:39,044 INFO L225 Difference]: With dead ends: 1679 [2020-10-12 11:06:39,044 INFO L226 Difference]: Without dead ends: 926 [2020-10-12 11:06:39,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=557, Invalid=1335, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 11:06:39,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2020-10-12 11:06:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 890. [2020-10-12 11:06:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-10-12 11:06:39,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1068 transitions. [2020-10-12 11:06:39,079 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1068 transitions. Word has length 147 [2020-10-12 11:06:39,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:39,079 INFO L479 AbstractCegarLoop]: Abstraction has 890 states and 1068 transitions. [2020-10-12 11:06:39,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:06:39,079 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1068 transitions. [2020-10-12 11:06:39,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-12 11:06:39,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:39,084 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:06:39,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:06:39,084 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:39,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:39,085 INFO L82 PathProgramCache]: Analyzing trace with hash 154391864, now seen corresponding path program 1 times [2020-10-12 11:06:39,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:39,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369781861] [2020-10-12 11:06:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:39,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:39,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:39,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:39,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:41,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:42,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:43,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:44,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:44,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 11:06:44,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:06:44,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 11:06:44,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:06:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:06:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:06:44,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:44,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:44,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:44,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:44,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:44,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:44,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:06:44,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:44,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:44,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:44,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:44,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:44,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:06:44,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:44,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:06:44,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:44,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:44,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:44,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:44,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:44,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:06:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:44,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:44,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:44,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:06:44,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:06:44,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:44,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 11:06:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:44,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:44,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:44,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:06:44,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:44,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:06:44,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:06:44,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-12 11:06:44,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369781861] [2020-10-12 11:06:44,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:44,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:06:44,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221813033] [2020-10-12 11:06:44,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:06:44,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:44,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:06:44,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:06:44,999 INFO L87 Difference]: Start difference. First operand 890 states and 1068 transitions. Second operand 13 states. [2020-10-12 11:06:45,208 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-12 11:06:45,351 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-12 11:06:45,744 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 11:06:46,298 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 11:06:46,621 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-12 11:06:46,985 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-12 11:06:47,231 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-12 11:06:48,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:48,238 INFO L93 Difference]: Finished difference Result 1896 states and 2324 transitions. [2020-10-12 11:06:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:06:48,239 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 149 [2020-10-12 11:06:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:48,244 INFO L225 Difference]: With dead ends: 1896 [2020-10-12 11:06:48,245 INFO L226 Difference]: Without dead ends: 1072 [2020-10-12 11:06:48,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:06:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-10-12 11:06:48,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 965. [2020-10-12 11:06:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-12 11:06:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1150 transitions. [2020-10-12 11:06:48,275 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1150 transitions. Word has length 149 [2020-10-12 11:06:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:48,275 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1150 transitions. [2020-10-12 11:06:48,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:06:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1150 transitions. [2020-10-12 11:06:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 11:06:48,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:48,279 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:06:48,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:06:48,279 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:48,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:48,280 INFO L82 PathProgramCache]: Analyzing trace with hash -892321721, now seen corresponding path program 1 times [2020-10-12 11:06:48,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:48,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437132747] [2020-10-12 11:06:48,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:48,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:48,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:48,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:49,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:50,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:51,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:51,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 11:06:51,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:06:51,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2879 [2020-10-12 11:06:51,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:06:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:06:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:06:51,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:51,631 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-12 11:06:51,858 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-12 11:06:52,103 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-10-12 11:06:52,338 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 45 [2020-10-12 11:06:52,562 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 41 [2020-10-12 11:06:52,775 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2020-10-12 11:06:52,961 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 32 [2020-10-12 11:06:53,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:53,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:53,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:53,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:53,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:53,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:06:53,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:53,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:53,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:53,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:53,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:53,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:53,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:53,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:53,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:06:53,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:53,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:06:53,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:53,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:53,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:53,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:53,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:53,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:06:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:53,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:53,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:53,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:06:53,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:53,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 11:06:53,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:53,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:53,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:53,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:06:53,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:06:53,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437132747] [2020-10-12 11:06:53,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:53,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:06:53,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889280963] [2020-10-12 11:06:53,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:06:53,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:53,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:06:53,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:06:53,247 INFO L87 Difference]: Start difference. First operand 965 states and 1150 transitions. Second operand 13 states. [2020-10-12 11:06:53,764 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-10-12 11:06:53,966 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:06:54,169 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:06:54,585 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-12 11:06:55,003 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-10-12 11:06:55,684 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-12 11:06:56,167 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 104 [2020-10-12 11:06:56,649 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 99 [2020-10-12 11:06:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:57,175 INFO L93 Difference]: Finished difference Result 1932 states and 2351 transitions. [2020-10-12 11:06:57,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:06:57,175 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 151 [2020-10-12 11:06:57,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:57,180 INFO L225 Difference]: With dead ends: 1932 [2020-10-12 11:06:57,180 INFO L226 Difference]: Without dead ends: 1033 [2020-10-12 11:06:57,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:06:57,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2020-10-12 11:06:57,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1025. [2020-10-12 11:06:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-10-12 11:06:57,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1217 transitions. [2020-10-12 11:06:57,212 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1217 transitions. Word has length 151 [2020-10-12 11:06:57,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:57,212 INFO L479 AbstractCegarLoop]: Abstraction has 1025 states and 1217 transitions. [2020-10-12 11:06:57,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:06:57,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1217 transitions. [2020-10-12 11:06:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-12 11:06:57,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:57,217 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:06:57,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:06:57,217 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:57,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:57,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1010318478, now seen corresponding path program 1 times [2020-10-12 11:06:57,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:57,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048065213] [2020-10-12 11:06:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:57,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:57,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:57,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:58,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:58,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:58,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:58,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:00,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:02,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:02,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 11:07:02,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:07:02,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4903 [2020-10-12 11:07:02,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:02,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:07:02,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:07:02,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:07:02,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:02,571 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 43 [2020-10-12 11:07:02,799 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-12 11:07:02,964 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 40 [2020-10-12 11:07:03,175 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2020-10-12 11:07:03,369 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2020-10-12 11:07:03,633 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-10-12 11:07:03,808 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2020-10-12 11:07:04,039 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 34 [2020-10-12 11:07:04,266 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2020-10-12 11:07:04,509 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 34 [2020-10-12 11:07:04,725 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 32 [2020-10-12 11:07:04,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:04,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:04,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:04,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:04,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:07:04,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:04,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:04,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:05,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:05,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:05,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:05,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:05,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:05,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:05,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:05,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:05,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:05,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:07:05,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:05,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 11:07:05,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:05,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:05,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:05,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:07:05,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:05,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:07:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:05,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:05,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:05,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:07:05,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:07:05,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:07:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:05,229 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-10-12 11:07:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 77 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 11:07:05,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048065213] [2020-10-12 11:07:05,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:05,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:07:05,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821103340] [2020-10-12 11:07:05,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:07:05,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:05,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:07:05,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:07:05,378 INFO L87 Difference]: Start difference. First operand 1025 states and 1217 transitions. Second operand 20 states. [2020-10-12 11:07:06,089 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2020-10-12 11:07:06,291 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 11:07:06,489 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 11:07:06,989 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 11:07:07,361 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-12 11:07:07,626 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 61 [2020-10-12 11:07:07,987 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2020-10-12 11:07:08,403 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2020-10-12 11:07:08,784 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 108 [2020-10-12 11:07:09,442 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 109 [2020-10-12 11:07:09,926 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 105 [2020-10-12 11:07:10,451 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2020-10-12 11:07:10,922 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2020-10-12 11:07:11,338 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 105 [2020-10-12 11:07:11,636 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2020-10-12 11:07:11,829 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-10-12 11:07:12,305 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2020-10-12 11:07:12,889 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2020-10-12 11:07:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:12,950 INFO L93 Difference]: Finished difference Result 2085 states and 2555 transitions. [2020-10-12 11:07:12,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 11:07:12,951 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 164 [2020-10-12 11:07:12,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:12,956 INFO L225 Difference]: With dead ends: 2085 [2020-10-12 11:07:12,956 INFO L226 Difference]: Without dead ends: 1126 [2020-10-12 11:07:12,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=493, Invalid=1229, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 11:07:12,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2020-10-12 11:07:12,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1085. [2020-10-12 11:07:12,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1085 states. [2020-10-12 11:07:12,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1291 transitions. [2020-10-12 11:07:12,987 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1291 transitions. Word has length 164 [2020-10-12 11:07:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:12,988 INFO L479 AbstractCegarLoop]: Abstraction has 1085 states and 1291 transitions. [2020-10-12 11:07:12,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:07:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1291 transitions. [2020-10-12 11:07:12,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-12 11:07:12,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:12,992 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:12,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:07:12,993 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:12,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:12,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1065395512, now seen corresponding path program 1 times [2020-10-12 11:07:12,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:12,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815173017] [2020-10-12 11:07:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:13,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:13,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:13,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:14,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:14,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:16,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 11:07:16,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:07:16,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3060 [2020-10-12 11:07:16,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:16,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:07:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 11:07:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 11:07:16,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:16,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:16,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:16,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:16,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:16,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:16,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:16,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:16,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:16,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:16,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:16,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:07:16,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 11:07:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:16,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:16,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:16,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:07:16,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:16,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 11:07:16,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:07:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:16,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:07:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:16,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:16,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:07:16,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:16,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 11:07:16,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:16,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:16,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:16,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:07:16,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 11:07:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:16,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:07:16,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:07:16,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:07:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:16,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:07:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:16,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:16,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:16,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:07:16,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:07:16,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:16,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:16,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:07:16,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:16,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 131 proven. 45 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-12 11:07:16,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815173017] [2020-10-12 11:07:16,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:16,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:07:16,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500105748] [2020-10-12 11:07:16,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:07:16,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:16,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:07:16,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:07:16,447 INFO L87 Difference]: Start difference. First operand 1085 states and 1291 transitions. Second operand 7 states. [2020-10-12 11:07:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:18,507 INFO L93 Difference]: Finished difference Result 3106 states and 3774 transitions. [2020-10-12 11:07:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:07:18,509 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-10-12 11:07:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:18,515 INFO L225 Difference]: With dead ends: 3106 [2020-10-12 11:07:18,516 INFO L226 Difference]: Without dead ends: 1679 [2020-10-12 11:07:18,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:07:18,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2020-10-12 11:07:18,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1264. [2020-10-12 11:07:18,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1264 states. [2020-10-12 11:07:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1453 transitions. [2020-10-12 11:07:18,560 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1453 transitions. Word has length 199 [2020-10-12 11:07:18,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:18,561 INFO L479 AbstractCegarLoop]: Abstraction has 1264 states and 1453 transitions. [2020-10-12 11:07:18,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:07:18,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1453 transitions. [2020-10-12 11:07:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-12 11:07:18,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:18,567 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:07:18,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:07:18,568 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:18,568 INFO L82 PathProgramCache]: Analyzing trace with hash -561853748, now seen corresponding path program 1 times [2020-10-12 11:07:18,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:18,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066102911] [2020-10-12 11:07:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:18,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:18,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:19,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-12 11:07:19,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:07:19,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 699 [2020-10-12 11:07:19,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-12 11:07:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 11:07:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:19,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:19,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:19,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:19,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:19,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:19,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:19,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:19,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:19,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:19,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:19,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:07:19,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:07:19,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:19,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:07:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:19,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:19,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:07:19,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:19,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:07:19,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:19,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:19,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:19,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:19,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:19,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:07:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:19,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:19,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:07:19,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:19,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:19,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:07:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:19,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:19,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:07:19,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:19,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:07:19,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:19,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:19,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:19,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:19,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:19,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:07:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:19,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:19,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:07:19,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:19,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:07:19,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 11:07:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 132 proven. 5 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-12 11:07:19,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066102911] [2020-10-12 11:07:19,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:19,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:07:19,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353778313] [2020-10-12 11:07:19,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:07:19,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:19,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:07:19,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:07:19,676 INFO L87 Difference]: Start difference. First operand 1264 states and 1453 transitions. Second operand 5 states. [2020-10-12 11:07:20,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:20,724 INFO L93 Difference]: Finished difference Result 2261 states and 2613 transitions. [2020-10-12 11:07:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:07:20,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 229 [2020-10-12 11:07:20,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:20,729 INFO L225 Difference]: With dead ends: 2261 [2020-10-12 11:07:20,729 INFO L226 Difference]: Without dead ends: 1272 [2020-10-12 11:07:20,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:07:20,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2020-10-12 11:07:20,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1264. [2020-10-12 11:07:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1264 states. [2020-10-12 11:07:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1452 transitions. [2020-10-12 11:07:20,767 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1452 transitions. Word has length 229 [2020-10-12 11:07:20,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:20,768 INFO L479 AbstractCegarLoop]: Abstraction has 1264 states and 1452 transitions. [2020-10-12 11:07:20,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:07:20,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1452 transitions. [2020-10-12 11:07:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-12 11:07:20,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:20,775 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:20,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:07:20,775 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:20,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:20,775 INFO L82 PathProgramCache]: Analyzing trace with hash -359994718, now seen corresponding path program 1 times [2020-10-12 11:07:20,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:20,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521644378] [2020-10-12 11:07:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:20,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:20,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:21,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:21,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:23,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:23,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-12 11:07:23,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:07:23,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2438 [2020-10-12 11:07:23,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 11:07:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 11:07:23,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:23,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:23,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:23,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:23,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:23,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:23,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:23,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:23,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:23,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:23,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:23,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:23,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:07:23,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:23,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:07:23,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:23,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:23,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:23,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:07:23,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:23,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:07:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:23,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:23,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:23,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:07:23,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:23,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 11:07:23,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:07:23,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:07:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:23,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:23,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:23,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:07:23,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:23,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:07:23,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 11:07:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:23,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:23,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:07:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:23,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:23,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:23,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:07:23,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:23,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:07:23,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:23,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:23,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:07:23,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:23,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:23,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:07:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:23,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:23,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:23,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 11:07:23,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:07:23,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 11:07:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 180 proven. 46 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-12 11:07:23,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521644378] [2020-10-12 11:07:23,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:23,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:07:23,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126014575] [2020-10-12 11:07:23,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:07:23,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:23,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:07:23,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:07:23,522 INFO L87 Difference]: Start difference. First operand 1264 states and 1452 transitions. Second operand 8 states. [2020-10-12 11:07:25,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:25,274 INFO L93 Difference]: Finished difference Result 3713 states and 4392 transitions. [2020-10-12 11:07:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:07:25,274 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2020-10-12 11:07:25,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:25,284 INFO L225 Difference]: With dead ends: 3713 [2020-10-12 11:07:25,284 INFO L226 Difference]: Without dead ends: 2515 [2020-10-12 11:07:25,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-12 11:07:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2020-10-12 11:07:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2511. [2020-10-12 11:07:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2511 states. [2020-10-12 11:07:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 2927 transitions. [2020-10-12 11:07:25,346 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 2927 transitions. Word has length 234 [2020-10-12 11:07:25,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:25,347 INFO L479 AbstractCegarLoop]: Abstraction has 2511 states and 2927 transitions. [2020-10-12 11:07:25,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:07:25,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 2927 transitions. [2020-10-12 11:07:25,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-12 11:07:25,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:25,355 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:25,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:07:25,356 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:25,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:25,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1759291890, now seen corresponding path program 1 times [2020-10-12 11:07:25,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:25,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705944316] [2020-10-12 11:07:25,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:25,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:26,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:26,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:26,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 11:07:26,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:07:26,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 961 [2020-10-12 11:07:26,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-12 11:07:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:07:26,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:26,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:26,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:26,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:26,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:26,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:26,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:26,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:26,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:26,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:26,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:07:26,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:26,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:07:26,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:26,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:26,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:07:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:26,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:26,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:26,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:07:26,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:07:26,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:26,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:07:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:26,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:26,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:26,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:07:26,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:26,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:26,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:26,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:26,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:07:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:26,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:26,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:26,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:07:26,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:07:26,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 11:07:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:26,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 11:07:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:26,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:26,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:26,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 11:07:26,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:26,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 11:07:26,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 11:07:26,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:26,638 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-12 11:07:26,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705944316] [2020-10-12 11:07:26,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:26,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:07:26,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664661838] [2020-10-12 11:07:26,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:07:26,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:26,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:07:26,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:07:26,640 INFO L87 Difference]: Start difference. First operand 2511 states and 2927 transitions. Second operand 7 states. [2020-10-12 11:07:28,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:28,102 INFO L93 Difference]: Finished difference Result 4279 states and 4998 transitions. [2020-10-12 11:07:28,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:07:28,103 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 256 [2020-10-12 11:07:28,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:28,113 INFO L225 Difference]: With dead ends: 4279 [2020-10-12 11:07:28,113 INFO L226 Difference]: Without dead ends: 2527 [2020-10-12 11:07:28,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:07:28,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2020-10-12 11:07:28,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2513. [2020-10-12 11:07:28,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2513 states. [2020-10-12 11:07:28,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 2894 transitions. [2020-10-12 11:07:28,179 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 2894 transitions. Word has length 256 [2020-10-12 11:07:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:28,180 INFO L479 AbstractCegarLoop]: Abstraction has 2513 states and 2894 transitions. [2020-10-12 11:07:28,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:07:28,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 2894 transitions. [2020-10-12 11:07:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-12 11:07:28,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:28,188 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:28,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:07:28,188 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:28,189 INFO L82 PathProgramCache]: Analyzing trace with hash 398050546, now seen corresponding path program 1 times [2020-10-12 11:07:28,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:28,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543932914] [2020-10-12 11:07:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:28,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:28,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-12 11:07:28,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:28,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-12 11:07:28,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:28,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:28,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-12 11:07:28,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 11:07:28,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:28,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:28,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:28,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:28,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:28,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:28,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:07:28,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:28,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:07:28,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:28,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:28,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:07:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:28,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:07:28,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:28,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:07:28,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:28,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:28,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:28,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:28,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:28,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:07:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:28,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:28,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:07:28,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:28,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:28,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:28,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:28,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:28,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:28,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:28,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:07:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:28,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:28,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:07:28,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:28,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:28,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:28,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:28,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 11:07:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:28,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:28,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:28,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 11:07:28,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:28,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:07:28,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 11:07:29,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-12 11:07:29,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543932914] [2020-10-12 11:07:29,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:29,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:07:29,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225717686] [2020-10-12 11:07:29,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:07:29,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:29,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:07:29,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:07:29,093 INFO L87 Difference]: Start difference. First operand 2513 states and 2894 transitions. Second operand 5 states. [2020-10-12 11:07:30,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:30,232 INFO L93 Difference]: Finished difference Result 4966 states and 5728 transitions. [2020-10-12 11:07:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:07:30,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-10-12 11:07:30,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:30,242 INFO L225 Difference]: With dead ends: 4966 [2020-10-12 11:07:30,242 INFO L226 Difference]: Without dead ends: 2519 [2020-10-12 11:07:30,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:07:30,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2020-10-12 11:07:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2513. [2020-10-12 11:07:30,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2513 states. [2020-10-12 11:07:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 2850 transitions. [2020-10-12 11:07:30,305 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 2850 transitions. Word has length 274 [2020-10-12 11:07:30,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:30,306 INFO L479 AbstractCegarLoop]: Abstraction has 2513 states and 2850 transitions. [2020-10-12 11:07:30,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:07:30,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 2850 transitions. [2020-10-12 11:07:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-12 11:07:30,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:30,315 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:07:30,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:07:30,315 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:30,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:30,316 INFO L82 PathProgramCache]: Analyzing trace with hash 185375927, now seen corresponding path program 1 times [2020-10-12 11:07:30,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:30,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217436663] [2020-10-12 11:07:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 11:07:30,396 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 11:07:30,396 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 11:07:30,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:07:30,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:07:30 BoogieIcfgContainer [2020-10-12 11:07:30,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:07:30,500 INFO L168 Benchmark]: Toolchain (without parser) took 131746.18 ms. Allocated memory was 139.5 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 101.1 MB in the beginning and 805.5 MB in the end (delta: -704.5 MB). Peak memory consumption was 322.1 MB. Max. memory is 7.1 GB. [2020-10-12 11:07:30,503 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 11:07:30,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.92 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 169.8 MB in the end (delta: -68.9 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-10-12 11:07:30,505 INFO L168 Benchmark]: Boogie Preprocessor took 130.09 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 164.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-12 11:07:30,506 INFO L168 Benchmark]: RCFGBuilder took 1226.67 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 164.8 MB in the beginning and 179.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-10-12 11:07:30,506 INFO L168 Benchmark]: TraceAbstraction took 129670.19 ms. Allocated memory was 237.5 MB in the beginning and 1.2 GB in the end (delta: 928.5 MB). Free memory was 178.1 MB in the beginning and 805.5 MB in the end (delta: -627.5 MB). Peak memory consumption was 301.0 MB. Max. memory is 7.1 GB. [2020-10-12 11:07:30,513 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.92 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 169.8 MB in the end (delta: -68.9 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.09 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 164.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1226.67 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 164.8 MB in the beginning and 179.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 129670.19 ms. Allocated memory was 237.5 MB in the beginning and 1.2 GB in the end (delta: 928.5 MB). Free memory was 178.1 MB in the beginning and 805.5 MB in the end (delta: -627.5 MB). Peak memory consumption was 301.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 425]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int d= 4; [L9] int e= 5; [L10] int f= 6; [L11] int c= 3; [L12] int b= 2; [L15] int u = 21; [L16] int v = 22; [L17] int w = 23; [L18] int x = 24; [L19] int y = 25; [L20] int z = 26; [L22] int a17 = 1; [L23] int a7 = 0; [L24] int a20 = 1; [L25] int a8 = 15; [L26] int a12 = 8; [L27] int a16 = 5; [L28] int a21 = 1; [L580] int output = -1; [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L334] a17 = 0 [L335] a16 = 4 [L336] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L269] a20 = 0 [L270] a17 = 1 [L271] a16 = 6 [L272] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L63] a17 = 0 [L64] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] COND TRUE ((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13))))))) [L383] a20 = 0 [L384] a21 = 1 [L385] a8 = 14 [L386] a17 = 0 [L387] a16 = 5 [L388] a7 = 1 [L389] return -1; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L391] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L394] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L397] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L400] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L403] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L406] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L409] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L412] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L415] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L418] COND FALSE !(((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L421] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L424] COND TRUE ((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L425] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 129.5s, OverallIterations: 19, TraceHistogramMax: 6, AutomataDifference: 56.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 504 SDtfs, 8054 SDslu, 851 SDs, 0 SdLazy, 16679 SolverSat, 1809 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 518 GetRequests, 188 SyntacticMatches, 11 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 44.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2513occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 18 MinimizatonAttempts, 763 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 70.0s InterpolantComputationTime, 3148 NumberOfCodeBlocks, 3148 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2841 ConstructedInterpolants, 0 QuantifiedInterpolants, 5564045 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2033/2223 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 incorrect! Received shutdown request...