/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:02:38,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:02:38,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:02:38,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:02:38,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:02:38,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:02:38,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:02:38,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:02:38,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:02:38,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:02:38,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:02:38,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:02:38,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:02:38,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:02:38,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:02:38,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:02:38,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:02:38,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:02:38,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:02:38,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:02:38,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:02:38,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:02:38,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:02:38,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:02:38,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:02:38,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:02:38,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:02:38,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:02:38,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:02:38,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:02:38,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:02:38,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:02:38,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:02:38,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:02:38,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:02:38,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:02:38,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:02:38,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:02:38,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:02:38,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:02:38,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:02:38,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 06:02:38,574 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:02:38,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:02:38,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:02:38,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:02:38,576 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:02:38,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:02:38,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:02:38,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:02:38,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:02:38,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:02:38,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:02:38,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:02:38,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:02:38,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:02:38,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:02:38,579 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:02:38,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:02:38,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:02:38,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:02:38,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:02:38,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:02:38,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:02:38,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:02:38,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:02:38,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:02:38,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:02:38,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:02:38,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:02:38,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:02:38,582 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:02:38,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:02:38,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:02:38,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:02:38,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:02:38,921 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:02:38,921 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label28.c [2020-10-13 06:02:38,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f96c437e/dccf4911fd6c4f848cdbfdb878ec03ab/FLAGd5cbc5dd5 [2020-10-13 06:02:39,514 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:02:39,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label28.c [2020-10-13 06:02:39,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f96c437e/dccf4911fd6c4f848cdbfdb878ec03ab/FLAGd5cbc5dd5 [2020-10-13 06:02:39,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f96c437e/dccf4911fd6c4f848cdbfdb878ec03ab [2020-10-13 06:02:39,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:02:39,956 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:02:39,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:02:39,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:02:39,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:02:39,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:02:39" (1/1) ... [2020-10-13 06:02:39,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129c6bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:39, skipping insertion in model container [2020-10-13 06:02:39,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:02:39" (1/1) ... [2020-10-13 06:02:39,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:02:40,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:02:40,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:02:40,524 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:02:40,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:02:40,624 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:02:40,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40 WrapperNode [2020-10-13 06:02:40,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:02:40,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:02:40,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:02:40,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:02:40,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (1/1) ... [2020-10-13 06:02:40,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (1/1) ... [2020-10-13 06:02:40,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (1/1) ... [2020-10-13 06:02:40,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (1/1) ... [2020-10-13 06:02:40,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (1/1) ... [2020-10-13 06:02:40,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (1/1) ... [2020-10-13 06:02:40,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (1/1) ... [2020-10-13 06:02:40,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:02:40,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:02:40,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:02:40,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:02:40,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:02:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:02:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:02:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:02:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:02:40,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:02:40,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:02:40,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:02:40,808 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:02:40,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:02:40,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:02:40,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:02:41,885 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:02:41,886 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:02:41,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:02:41 BoogieIcfgContainer [2020-10-13 06:02:41,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:02:41,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:02:41,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:02:41,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:02:41,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:02:39" (1/3) ... [2020-10-13 06:02:41,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320c0b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:02:41, skipping insertion in model container [2020-10-13 06:02:41,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:40" (2/3) ... [2020-10-13 06:02:41,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320c0b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:02:41, skipping insertion in model container [2020-10-13 06:02:41,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:02:41" (3/3) ... [2020-10-13 06:02:41,900 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label28.c [2020-10-13 06:02:41,910 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:02:41,917 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:02:41,931 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:02:41,956 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:02:41,957 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:02:41,957 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:02:41,957 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:02:41,957 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:02:41,958 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:02:41,958 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:02:41,958 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:02:41,979 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:02:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 06:02:41,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:41,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:41,992 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:41,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:41,998 INFO L82 PathProgramCache]: Analyzing trace with hash -199989281, now seen corresponding path program 1 times [2020-10-13 06:02:42,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:42,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884094375] [2020-10-13 06:02:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:42,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:43,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:43,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 06:02:43,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1381 [2020-10-13 06:02:43,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:02:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:02:43,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:02:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:02:44,192 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-13 06:02:44,334 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2020-10-13 06:02:44,465 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2020-10-13 06:02:44,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:44,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:44,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:44,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:44,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:44,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:44,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:44,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:02:44,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:45,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884094375] [2020-10-13 06:02:45,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:02:45,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:02:45,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33269876] [2020-10-13 06:02:45,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:02:45,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:45,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:02:45,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:02:45,032 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:02:45,478 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:02:45,765 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-13 06:02:46,000 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-10-13 06:02:46,373 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2020-10-13 06:02:46,861 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2020-10-13 06:02:47,172 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2020-10-13 06:02:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:47,948 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:02:47,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:47,952 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-10-13 06:02:47,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:47,974 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:02:47,974 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:02:47,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:48,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:02:48,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:02:48,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:02:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:02:48,048 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 99 [2020-10-13 06:02:48,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:48,048 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:02:48,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:02:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:02:48,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 06:02:48,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:48,054 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:48,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:02:48,055 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:48,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:48,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1433655076, now seen corresponding path program 1 times [2020-10-13 06:02:48,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:48,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048997167] [2020-10-13 06:02:48,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:48,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:48,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:48,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:49,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:49,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 06:02:49,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:49,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1221 [2020-10-13 06:02:49,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:02:49,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:02:49,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:49,767 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-10-13 06:02:49,925 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:02:50,093 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:02:50,328 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 52 [2020-10-13 06:02:50,559 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 49 [2020-10-13 06:02:50,783 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 45 [2020-10-13 06:02:51,000 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 41 [2020-10-13 06:02:51,184 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 35 [2020-10-13 06:02:51,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:51,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:02:51,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:51,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:51,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:02:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:51,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048997167] [2020-10-13 06:02:51,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:51,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:51,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635605410] [2020-10-13 06:02:51,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:51,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:51,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:51,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:51,495 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:02:51,793 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:02:51,957 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:02:52,517 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-13 06:02:53,323 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-13 06:02:53,707 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-13 06:02:54,180 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-13 06:02:54,446 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-13 06:02:55,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:55,103 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:02:55,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:02:55,104 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 107 [2020-10-13 06:02:55,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:55,108 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:02:55,108 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:02:55,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:02:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:02:55,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:02:55,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:02:55,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:02:55,152 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 107 [2020-10-13 06:02:55,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:55,152 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:02:55,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:02:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-13 06:02:55,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:55,161 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:55,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:02:55,161 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:55,162 INFO L82 PathProgramCache]: Analyzing trace with hash -2070601114, now seen corresponding path program 1 times [2020-10-13 06:02:55,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:55,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119712796] [2020-10-13 06:02:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 06:02:55,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:55,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-10-13 06:02:55,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:02:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-13 06:02:55,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:55,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:02:55,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:55,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:02:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,925 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:55,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119712796] [2020-10-13 06:02:55,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:55,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:55,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072551000] [2020-10-13 06:02:55,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:55,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:55,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:55,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:55,929 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:02:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:56,909 INFO L93 Difference]: Finished difference Result 625 states and 850 transitions. [2020-10-13 06:02:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:56,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-13 06:02:56,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:56,926 INFO L225 Difference]: With dead ends: 625 [2020-10-13 06:02:56,927 INFO L226 Difference]: Without dead ends: 415 [2020-10-13 06:02:56,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:56,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-13 06:02:56,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2020-10-13 06:02:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-13 06:02:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 520 transitions. [2020-10-13 06:02:56,968 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 520 transitions. Word has length 110 [2020-10-13 06:02:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:56,969 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 520 transitions. [2020-10-13 06:02:56,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 520 transitions. [2020-10-13 06:02:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 06:02:56,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:56,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:56,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:02:56,973 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:56,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:56,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1150932731, now seen corresponding path program 1 times [2020-10-13 06:02:56,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:56,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564199184] [2020-10-13 06:02:56,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:57,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:59,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:01,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:01,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 06:03:01,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:01,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4238 [2020-10-13 06:03:01,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:01,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:03:01,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:01,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:01,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:01,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:01,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:01,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:01,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:01,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:01,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:01,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:01,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:01,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:01,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:01,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:01,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:01,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:01,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:01,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:01,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:03:01,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:03:01,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:03:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:01,425 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:01,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564199184] [2020-10-13 06:03:01,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:01,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:01,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520227857] [2020-10-13 06:03:01,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:01,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:01,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:01,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:01,428 INFO L87 Difference]: Start difference. First operand 413 states and 520 transitions. Second operand 7 states. [2020-10-13 06:03:02,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:02,549 INFO L93 Difference]: Finished difference Result 921 states and 1174 transitions. [2020-10-13 06:03:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:03:02,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 119 [2020-10-13 06:03:02,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:02,556 INFO L225 Difference]: With dead ends: 921 [2020-10-13 06:03:02,556 INFO L226 Difference]: Without dead ends: 574 [2020-10-13 06:03:02,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:03:02,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-13 06:03:02,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 554. [2020-10-13 06:03:02,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-13 06:03:02,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 651 transitions. [2020-10-13 06:03:02,580 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 651 transitions. Word has length 119 [2020-10-13 06:03:02,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:02,580 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 651 transitions. [2020-10-13 06:03:02,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:02,581 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 651 transitions. [2020-10-13 06:03:02,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 06:03:02,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:02,583 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:02,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:03:02,584 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:02,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:02,584 INFO L82 PathProgramCache]: Analyzing trace with hash 645304587, now seen corresponding path program 1 times [2020-10-13 06:03:02,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:02,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336905250] [2020-10-13 06:03:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:02,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:02,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:02,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:04,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 06:03:04,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:04,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1623 [2020-10-13 06:03:04,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:04,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:04,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:04,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:03:04,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:04,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:04,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:04,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:04,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:04,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:04,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:04,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:04,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:04,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:04,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:04,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:04,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:04,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:04,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:04,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:03:04,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:04,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:03:04,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:04,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:04,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:03:04,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:04,414 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:04,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336905250] [2020-10-13 06:03:04,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:04,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:04,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924685278] [2020-10-13 06:03:04,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:04,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:04,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:04,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:04,416 INFO L87 Difference]: Start difference. First operand 554 states and 651 transitions. Second operand 7 states. [2020-10-13 06:03:05,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:05,924 INFO L93 Difference]: Finished difference Result 1250 states and 1500 transitions. [2020-10-13 06:03:05,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:03:05,926 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-13 06:03:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:05,931 INFO L225 Difference]: With dead ends: 1250 [2020-10-13 06:03:05,931 INFO L226 Difference]: Without dead ends: 623 [2020-10-13 06:03:05,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:03:05,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-10-13 06:03:05,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 415. [2020-10-13 06:03:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-13 06:03:05,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 470 transitions. [2020-10-13 06:03:05,959 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 470 transitions. Word has length 127 [2020-10-13 06:03:05,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:05,959 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 470 transitions. [2020-10-13 06:03:05,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 470 transitions. [2020-10-13 06:03:05,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-13 06:03:05,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:05,961 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:05,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:03:05,962 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:05,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:05,962 INFO L82 PathProgramCache]: Analyzing trace with hash 314521058, now seen corresponding path program 1 times [2020-10-13 06:03:05,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:05,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639257527] [2020-10-13 06:03:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:06,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:06,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 06:03:07,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:07,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1503 [2020-10-13 06:03:07,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:03:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:07,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:07,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:07,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:07,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:07,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:07,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 06:03:07,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:03:07,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:08,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639257527] [2020-10-13 06:03:08,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:08,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:08,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560314123] [2020-10-13 06:03:08,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:08,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:08,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:08,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:08,123 INFO L87 Difference]: Start difference. First operand 415 states and 470 transitions. Second operand 13 states. [2020-10-13 06:03:08,900 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:03:09,221 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:03:09,455 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:03:09,668 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:03:09,956 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:03:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:10,286 INFO L93 Difference]: Finished difference Result 832 states and 962 transitions. [2020-10-13 06:03:10,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:03:10,288 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2020-10-13 06:03:10,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:10,293 INFO L225 Difference]: With dead ends: 832 [2020-10-13 06:03:10,294 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:03:10,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:03:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 458. [2020-10-13 06:03:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:03:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 518 transitions. [2020-10-13 06:03:10,313 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 518 transitions. Word has length 140 [2020-10-13 06:03:10,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:10,314 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 518 transitions. [2020-10-13 06:03:10,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 518 transitions. [2020-10-13 06:03:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-13 06:03:10,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:10,316 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:10,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:03:10,317 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:10,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:10,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1959683645, now seen corresponding path program 1 times [2020-10-13 06:03:10,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:10,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310623633] [2020-10-13 06:03:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:10,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:12,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:12,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 06:03:12,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:12,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2413 [2020-10-13 06:03:12,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:12,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:12,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:03:12,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:03:12,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:13,193 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-10-13 06:03:13,313 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-10-13 06:03:13,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:13,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:13,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:13,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:13,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:13,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:13,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:13,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:03:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:03:13,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:03:13,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:13,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:03:13,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:03:14,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310623633] [2020-10-13 06:03:14,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:14,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:14,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962253988] [2020-10-13 06:03:14,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:14,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:14,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:14,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:14,088 INFO L87 Difference]: Start difference. First operand 458 states and 518 transitions. Second operand 14 states. [2020-10-13 06:03:14,526 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-10-13 06:03:14,713 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-13 06:03:14,993 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2020-10-13 06:03:15,280 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-10-13 06:03:15,597 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 113 [2020-10-13 06:03:15,978 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-13 06:03:16,271 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-10-13 06:03:16,519 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2020-10-13 06:03:16,878 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2020-10-13 06:03:17,325 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 06:03:17,530 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 06:03:17,756 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 06:03:17,946 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:03:18,103 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 06:03:18,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:18,446 INFO L93 Difference]: Finished difference Result 998 states and 1175 transitions. [2020-10-13 06:03:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:03:18,447 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 157 [2020-10-13 06:03:18,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:18,451 INFO L225 Difference]: With dead ends: 998 [2020-10-13 06:03:18,451 INFO L226 Difference]: Without dead ends: 606 [2020-10-13 06:03:18,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:03:18,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-10-13 06:03:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 532. [2020-10-13 06:03:18,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-10-13 06:03:18,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 597 transitions. [2020-10-13 06:03:18,470 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 597 transitions. Word has length 157 [2020-10-13 06:03:18,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:18,470 INFO L479 AbstractCegarLoop]: Abstraction has 532 states and 597 transitions. [2020-10-13 06:03:18,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 597 transitions. [2020-10-13 06:03:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-13 06:03:18,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:18,473 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:18,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:03:18,474 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:18,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:18,474 INFO L82 PathProgramCache]: Analyzing trace with hash -446658994, now seen corresponding path program 1 times [2020-10-13 06:03:18,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:18,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859895490] [2020-10-13 06:03:18,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:18,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:19,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:19,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 06:03:19,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:19,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1412 [2020-10-13 06:03:19,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:19,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:03:19,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:03:19,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:20,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:20,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:20,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:20,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:20,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:20,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:03:20,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:20,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:20,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:20,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:20,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:20,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:20,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:20,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:20,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 06:03:20,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:03:20,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:20,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859895490] [2020-10-13 06:03:20,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:20,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:20,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290966893] [2020-10-13 06:03:20,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:20,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:20,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:20,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:20,723 INFO L87 Difference]: Start difference. First operand 532 states and 597 transitions. Second operand 13 states. [2020-10-13 06:03:21,528 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:03:21,855 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:03:22,069 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:03:22,306 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:03:22,544 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:03:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:22,870 INFO L93 Difference]: Finished difference Result 1071 states and 1230 transitions. [2020-10-13 06:03:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:22,873 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 162 [2020-10-13 06:03:22,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:22,876 INFO L225 Difference]: With dead ends: 1071 [2020-10-13 06:03:22,876 INFO L226 Difference]: Without dead ends: 585 [2020-10-13 06:03:22,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:22,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-10-13 06:03:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 583. [2020-10-13 06:03:22,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-13 06:03:22,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 649 transitions. [2020-10-13 06:03:22,895 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 649 transitions. Word has length 162 [2020-10-13 06:03:22,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:22,896 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 649 transitions. [2020-10-13 06:03:22,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 649 transitions. [2020-10-13 06:03:22,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-13 06:03:22,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:22,899 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:22,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:03:22,899 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:22,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:22,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1848880849, now seen corresponding path program 1 times [2020-10-13 06:03:22,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:22,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277361746] [2020-10-13 06:03:22,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:22,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:23,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:23,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:23,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:25,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:25,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 06:03:25,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:25,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2383 [2020-10-13 06:03:25,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:03:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:03:25,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:25,581 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-13 06:03:25,765 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-13 06:03:26,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:26,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:26,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:26,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:26,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:26,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:26,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:26,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:03:26,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:03:26,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:03:26,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277361746] [2020-10-13 06:03:26,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:26,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:26,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756915236] [2020-10-13 06:03:26,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:26,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:26,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:26,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:26,748 INFO L87 Difference]: Start difference. First operand 583 states and 649 transitions. Second operand 14 states. [2020-10-13 06:03:27,510 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:03:27,801 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-13 06:03:28,130 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:03:28,496 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:03:28,753 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:03:29,067 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:03:29,389 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:03:29,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:29,752 INFO L93 Difference]: Finished difference Result 1164 states and 1324 transitions. [2020-10-13 06:03:29,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:29,753 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 173 [2020-10-13 06:03:29,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:29,756 INFO L225 Difference]: With dead ends: 1164 [2020-10-13 06:03:29,756 INFO L226 Difference]: Without dead ends: 647 [2020-10-13 06:03:29,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:03:29,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-10-13 06:03:29,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2020-10-13 06:03:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-10-13 06:03:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 717 transitions. [2020-10-13 06:03:29,778 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 717 transitions. Word has length 173 [2020-10-13 06:03:29,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:29,778 INFO L479 AbstractCegarLoop]: Abstraction has 645 states and 717 transitions. [2020-10-13 06:03:29,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:29,778 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 717 transitions. [2020-10-13 06:03:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 06:03:29,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:29,781 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:29,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:03:29,782 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:29,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:29,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1937718367, now seen corresponding path program 1 times [2020-10-13 06:03:29,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:29,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923902409] [2020-10-13 06:03:29,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:29,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:29,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:30,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:30,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:31,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:31,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-13 06:03:31,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:31,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1676 [2020-10-13 06:03:31,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:03:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:31,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:31,997 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-13 06:03:32,139 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 39 [2020-10-13 06:03:32,281 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 37 [2020-10-13 06:03:32,419 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 35 [2020-10-13 06:03:32,552 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 32 [2020-10-13 06:03:32,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:32,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:32,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:32,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:32,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:32,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:32,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:32,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:32,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:32,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:32,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:32,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:32,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:32,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:03:32,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:32,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:03:32,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:03:32,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:03:32,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923902409] [2020-10-13 06:03:32,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:32,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:32,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406918251] [2020-10-13 06:03:32,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:32,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:32,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:32,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:32,811 INFO L87 Difference]: Start difference. First operand 645 states and 717 transitions. Second operand 13 states. [2020-10-13 06:03:33,675 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:03:34,012 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-13 06:03:34,370 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:03:34,720 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:03:34,998 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:03:35,332 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-13 06:03:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:35,826 INFO L93 Difference]: Finished difference Result 1286 states and 1456 transitions. [2020-10-13 06:03:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:03:35,827 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 176 [2020-10-13 06:03:35,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:35,830 INFO L225 Difference]: With dead ends: 1286 [2020-10-13 06:03:35,830 INFO L226 Difference]: Without dead ends: 690 [2020-10-13 06:03:35,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:03:35,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-10-13 06:03:35,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 683. [2020-10-13 06:03:35,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2020-10-13 06:03:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 762 transitions. [2020-10-13 06:03:35,852 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 762 transitions. Word has length 176 [2020-10-13 06:03:35,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:35,853 INFO L479 AbstractCegarLoop]: Abstraction has 683 states and 762 transitions. [2020-10-13 06:03:35,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:35,853 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 762 transitions. [2020-10-13 06:03:35,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-13 06:03:35,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:35,856 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:35,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:03:35,857 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:35,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:35,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1258217915, now seen corresponding path program 1 times [2020-10-13 06:03:35,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:35,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344994902] [2020-10-13 06:03:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:35,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:36,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:36,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:38,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:38,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 06:03:38,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:38,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2135 [2020-10-13 06:03:38,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:03:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:38,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:38,510 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:03:38,626 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:03:39,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:39,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:39,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:39,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:39,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:39,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:39,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:39,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:39,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:39,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:39,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:39,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:39,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:39,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:39,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:39,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:39,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:03:39,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:39,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:03:39,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:03:39,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:03:39,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344994902] [2020-10-13 06:03:39,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:39,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:39,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288890259] [2020-10-13 06:03:39,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:39,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:39,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:39,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:39,321 INFO L87 Difference]: Start difference. First operand 683 states and 762 transitions. Second operand 14 states. [2020-10-13 06:03:39,973 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:03:40,256 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-13 06:03:40,528 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:03:40,886 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:03:41,064 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:03:41,433 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:03:41,716 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:03:41,851 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:03:42,028 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-13 06:03:42,271 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:03:42,407 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:03:42,595 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:03:42,954 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:03:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:43,329 INFO L93 Difference]: Finished difference Result 1418 states and 1632 transitions. [2020-10-13 06:03:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 06:03:43,330 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 179 [2020-10-13 06:03:43,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:43,334 INFO L225 Difference]: With dead ends: 1418 [2020-10-13 06:03:43,334 INFO L226 Difference]: Without dead ends: 767 [2020-10-13 06:03:43,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:03:43,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2020-10-13 06:03:43,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 726. [2020-10-13 06:03:43,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2020-10-13 06:03:43,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 811 transitions. [2020-10-13 06:03:43,359 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 811 transitions. Word has length 179 [2020-10-13 06:03:43,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:43,360 INFO L479 AbstractCegarLoop]: Abstraction has 726 states and 811 transitions. [2020-10-13 06:03:43,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 811 transitions. [2020-10-13 06:03:43,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-13 06:03:43,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:43,363 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:43,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:03:43,363 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:43,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:43,364 INFO L82 PathProgramCache]: Analyzing trace with hash 713973636, now seen corresponding path program 1 times [2020-10-13 06:03:43,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:43,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669454159] [2020-10-13 06:03:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:43,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:46,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:46,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 06:03:46,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2624 [2020-10-13 06:03:46,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:03:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:46,501 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:03:47,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:47,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:47,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:47,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:47,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:47,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:47,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:03:47,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:47,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:47,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:47,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:47,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:47,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:47,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:47,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:47,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:47,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:47,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:47,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:47,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:03:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:47,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:03:47,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:47,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:03:47,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:03:47,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:03:47,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669454159] [2020-10-13 06:03:47,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:47,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:47,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183548905] [2020-10-13 06:03:47,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:47,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:47,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:47,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:47,293 INFO L87 Difference]: Start difference. First operand 726 states and 811 transitions. Second operand 13 states. [2020-10-13 06:03:47,593 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:03:47,833 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 06:03:48,179 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 06:03:48,372 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 06:03:48,547 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 06:03:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:49,379 INFO L93 Difference]: Finished difference Result 1481 states and 1687 transitions. [2020-10-13 06:03:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:03:49,383 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 189 [2020-10-13 06:03:49,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:49,387 INFO L225 Difference]: With dead ends: 1481 [2020-10-13 06:03:49,387 INFO L226 Difference]: Without dead ends: 821 [2020-10-13 06:03:49,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:03:49,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2020-10-13 06:03:49,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 734. [2020-10-13 06:03:49,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-13 06:03:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 822 transitions. [2020-10-13 06:03:49,413 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 822 transitions. Word has length 189 [2020-10-13 06:03:49,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:49,413 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 822 transitions. [2020-10-13 06:03:49,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 822 transitions. [2020-10-13 06:03:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-13 06:03:49,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:49,417 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:49,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:03:49,417 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:49,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:49,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1520990692, now seen corresponding path program 1 times [2020-10-13 06:03:49,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:49,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684308812] [2020-10-13 06:03:49,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:50,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:51,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:51,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-13 06:03:51,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:51,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2453 [2020-10-13 06:03:51,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:03:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:51,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:52,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:52,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:52,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:52,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:52,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:52,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:03:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:03:52,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:52,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:03:52,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:03:52,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684308812] [2020-10-13 06:03:52,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:52,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:52,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990867727] [2020-10-13 06:03:52,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:52,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:52,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:52,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:52,488 INFO L87 Difference]: Start difference. First operand 734 states and 822 transitions. Second operand 13 states. [2020-10-13 06:03:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:53,965 INFO L93 Difference]: Finished difference Result 1469 states and 1675 transitions. [2020-10-13 06:03:53,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:03:53,967 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2020-10-13 06:03:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:53,969 INFO L225 Difference]: With dead ends: 1469 [2020-10-13 06:03:53,970 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:03:53,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:53,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:03:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2020-10-13 06:03:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-10-13 06:03:53,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 426 transitions. [2020-10-13 06:03:53,983 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 426 transitions. Word has length 201 [2020-10-13 06:03:53,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:53,983 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 426 transitions. [2020-10-13 06:03:53,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:53,983 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 426 transitions. [2020-10-13 06:03:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-13 06:03:53,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:53,986 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:53,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:03:53,987 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:53,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:53,987 INFO L82 PathProgramCache]: Analyzing trace with hash 704930535, now seen corresponding path program 1 times [2020-10-13 06:03:53,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:53,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098620541] [2020-10-13 06:03:53,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:54,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-13 06:03:55,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:55,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1566 [2020-10-13 06:03:55,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:03:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:03:55,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:56,027 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:03:56,211 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:03:56,449 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-10-13 06:03:56,651 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 45 [2020-10-13 06:03:56,846 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 41 [2020-10-13 06:03:57,014 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2020-10-13 06:03:57,172 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 32 [2020-10-13 06:03:57,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:57,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:57,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:57,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:03:57,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:57,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:03:57,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:03:57,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,470 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:03:57,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098620541] [2020-10-13 06:03:57,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:57,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:57,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667137125] [2020-10-13 06:03:57,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:57,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:57,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:57,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:57,472 INFO L87 Difference]: Start difference. First operand 395 states and 426 transitions. Second operand 13 states. [2020-10-13 06:03:58,050 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:03:58,218 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:03:58,535 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-13 06:03:58,867 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-10-13 06:03:59,302 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-13 06:03:59,630 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 104 [2020-10-13 06:03:59,952 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 99 [2020-10-13 06:04:00,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:00,582 INFO L93 Difference]: Finished difference Result 792 states and 863 transitions. [2020-10-13 06:04:00,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:00,583 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 213 [2020-10-13 06:04:00,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:00,585 INFO L225 Difference]: With dead ends: 792 [2020-10-13 06:04:00,585 INFO L226 Difference]: Without dead ends: 416 [2020-10-13 06:04:00,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:04:00,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-10-13 06:04:00,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 410. [2020-10-13 06:04:00,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-10-13 06:04:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 442 transitions. [2020-10-13 06:04:00,598 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 442 transitions. Word has length 213 [2020-10-13 06:04:00,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:00,598 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 442 transitions. [2020-10-13 06:04:00,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:00,598 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 442 transitions. [2020-10-13 06:04:00,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-13 06:04:00,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:00,601 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:00,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:04:00,602 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:00,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:00,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1417850146, now seen corresponding path program 1 times [2020-10-13 06:04:00,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:00,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915350606] [2020-10-13 06:04:00,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:00,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:01,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-13 06:04:03,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:04:03,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3162 [2020-10-13 06:04:03,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:04:03,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:04:03,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,136 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2020-10-13 06:04:04,372 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-13 06:04:04,490 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-10-13 06:04:04,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:04,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:04,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:04,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:04,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:04,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:04,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:04,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:04:04,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:04,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:05,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:05,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:05,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:05,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:04:05,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:04:05,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915350606] [2020-10-13 06:04:05,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:05,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:04:05,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050911310] [2020-10-13 06:04:05,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:04:05,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:05,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:04:05,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:04:05,200 INFO L87 Difference]: Start difference. First operand 410 states and 442 transitions. Second operand 14 states. [2020-10-13 06:04:05,643 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-10-13 06:04:05,847 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2020-10-13 06:04:06,146 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2020-10-13 06:04:06,470 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-13 06:04:06,760 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 111 [2020-10-13 06:04:07,037 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-10-13 06:04:07,441 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2020-10-13 06:04:07,795 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2020-10-13 06:04:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:08,171 INFO L93 Difference]: Finished difference Result 833 states and 909 transitions. [2020-10-13 06:04:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:08,171 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 226 [2020-10-13 06:04:08,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:08,175 INFO L225 Difference]: With dead ends: 833 [2020-10-13 06:04:08,175 INFO L226 Difference]: Without dead ends: 489 [2020-10-13 06:04:08,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:04:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-10-13 06:04:08,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 485. [2020-10-13 06:04:08,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-10-13 06:04:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 522 transitions. [2020-10-13 06:04:08,189 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 522 transitions. Word has length 226 [2020-10-13 06:04:08,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:08,189 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 522 transitions. [2020-10-13 06:04:08,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:04:08,189 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 522 transitions. [2020-10-13 06:04:08,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-13 06:04:08,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:08,192 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:08,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:04:08,192 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:08,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:08,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1926212145, now seen corresponding path program 1 times [2020-10-13 06:04:08,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:08,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476504759] [2020-10-13 06:04:08,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-13 06:04:08,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:08,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-10-13 06:04:08,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:04:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:04:08,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:08,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:08,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:08,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:04:08,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:08,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:08,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:08,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:08,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:04:08,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:08,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:04:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:04:09,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476504759] [2020-10-13 06:04:09,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:09,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:09,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826555558] [2020-10-13 06:04:09,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:09,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:09,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:09,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:09,065 INFO L87 Difference]: Start difference. First operand 485 states and 522 transitions. Second operand 5 states. [2020-10-13 06:04:09,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:09,815 INFO L93 Difference]: Finished difference Result 989 states and 1076 transitions. [2020-10-13 06:04:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:09,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2020-10-13 06:04:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:09,818 INFO L225 Difference]: With dead ends: 989 [2020-10-13 06:04:09,818 INFO L226 Difference]: Without dead ends: 487 [2020-10-13 06:04:09,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:09,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2020-10-13 06:04:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2020-10-13 06:04:09,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-10-13 06:04:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 519 transitions. [2020-10-13 06:04:09,831 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 519 transitions. Word has length 243 [2020-10-13 06:04:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:09,832 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 519 transitions. [2020-10-13 06:04:09,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 519 transitions. [2020-10-13 06:04:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-13 06:04:09,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:09,834 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:09,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:04:09,835 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:09,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:09,835 INFO L82 PathProgramCache]: Analyzing trace with hash -766672856, now seen corresponding path program 1 times [2020-10-13 06:04:09,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:09,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263630046] [2020-10-13 06:04:09,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-13 06:04:10,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 810 [2020-10-13 06:04:10,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:04:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:04:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:10,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:10,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:10,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:10,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:10,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:10,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:10,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:10,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:04:10,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:10,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:10,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:10,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:10,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:10,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:10,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:04:10,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:04:10,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:04:10,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:04:11,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263630046] [2020-10-13 06:04:11,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:11,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:11,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688672777] [2020-10-13 06:04:11,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:11,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:11,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:11,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:11,130 INFO L87 Difference]: Start difference. First operand 485 states and 519 transitions. Second operand 5 states. [2020-10-13 06:04:11,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:11,941 INFO L93 Difference]: Finished difference Result 985 states and 1064 transitions. [2020-10-13 06:04:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:11,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-10-13 06:04:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:11,944 INFO L225 Difference]: With dead ends: 985 [2020-10-13 06:04:11,944 INFO L226 Difference]: Without dead ends: 487 [2020-10-13 06:04:11,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2020-10-13 06:04:11,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2020-10-13 06:04:11,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-10-13 06:04:11,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 518 transitions. [2020-10-13 06:04:11,957 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 518 transitions. Word has length 261 [2020-10-13 06:04:11,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:11,958 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 518 transitions. [2020-10-13 06:04:11,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:11,958 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 518 transitions. [2020-10-13 06:04:11,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-13 06:04:11,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:11,960 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:11,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:04:11,961 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:11,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:11,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1865717605, now seen corresponding path program 1 times [2020-10-13 06:04:11,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:11,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658743569] [2020-10-13 06:04:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:12,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:12,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-13 06:04:12,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:12,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-13 06:04:12,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:04:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:04:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:12,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:12,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:12,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:12,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:12,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:12,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:12,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:12,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:12,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:12,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:12,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:12,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:12,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:12,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:12,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:12,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:12,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:12,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:12,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:12,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:12,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:12,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:12,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:12,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:12,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:12,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:12,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:12,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:12,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:12,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:12,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:12,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:12,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:12,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:12,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:12,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:12,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:04:12,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:12,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:04:12,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:12,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:12,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:12,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:04:12,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:04:13,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658743569] [2020-10-13 06:04:13,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:13,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:13,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353778313] [2020-10-13 06:04:13,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:13,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:13,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:13,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:13,054 INFO L87 Difference]: Start difference. First operand 485 states and 518 transitions. Second operand 5 states. [2020-10-13 06:04:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:13,845 INFO L93 Difference]: Finished difference Result 991 states and 1069 transitions. [2020-10-13 06:04:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:13,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2020-10-13 06:04:13,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:13,848 INFO L225 Difference]: With dead ends: 991 [2020-10-13 06:04:13,848 INFO L226 Difference]: Without dead ends: 487 [2020-10-13 06:04:13,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2020-10-13 06:04:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2020-10-13 06:04:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-10-13 06:04:13,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 515 transitions. [2020-10-13 06:04:13,861 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 515 transitions. Word has length 260 [2020-10-13 06:04:13,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:13,862 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 515 transitions. [2020-10-13 06:04:13,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:13,862 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 515 transitions. [2020-10-13 06:04:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-13 06:04:13,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:13,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:13,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:04:13,864 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:13,865 INFO L82 PathProgramCache]: Analyzing trace with hash 297044182, now seen corresponding path program 1 times [2020-10-13 06:04:13,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:13,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040834525] [2020-10-13 06:04:13,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-13 06:04:14,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:14,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-10-13 06:04:14,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:14,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:04:14,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:04:14,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:14,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:14,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:14,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:14,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:14,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:14,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:14,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:14,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:14,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:14,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:14,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:04:14,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:04:14,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:04:14,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:14,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:04:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:04:14,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:04:14,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040834525] [2020-10-13 06:04:14,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:14,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:14,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125956310] [2020-10-13 06:04:14,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:14,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:14,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:14,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:14,908 INFO L87 Difference]: Start difference. First operand 485 states and 515 transitions. Second operand 7 states. [2020-10-13 06:04:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:15,768 INFO L93 Difference]: Finished difference Result 1045 states and 1129 transitions. [2020-10-13 06:04:15,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:04:15,769 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 266 [2020-10-13 06:04:15,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:15,772 INFO L225 Difference]: With dead ends: 1045 [2020-10-13 06:04:15,772 INFO L226 Difference]: Without dead ends: 626 [2020-10-13 06:04:15,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-13 06:04:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-13 06:04:15,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 624. [2020-10-13 06:04:15,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-10-13 06:04:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 660 transitions. [2020-10-13 06:04:15,786 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 660 transitions. Word has length 266 [2020-10-13 06:04:15,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:15,787 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 660 transitions. [2020-10-13 06:04:15,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:15,787 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 660 transitions. [2020-10-13 06:04:15,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-13 06:04:15,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:15,789 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:15,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:04:15,790 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:15,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:15,790 INFO L82 PathProgramCache]: Analyzing trace with hash 793291450, now seen corresponding path program 1 times [2020-10-13 06:04:15,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:15,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636979825] [2020-10-13 06:04:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:15,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-13 06:04:16,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-13 06:04:16,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:04:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:04:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:16,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:16,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:16,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:16,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:16,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:16,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:16,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:16,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:16,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:16,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:04:16,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:04:16,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:16,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:04:16,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:04:16,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636979825] [2020-10-13 06:04:16,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:16,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:16,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761826523] [2020-10-13 06:04:16,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:16,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:16,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:16,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:16,526 INFO L87 Difference]: Start difference. First operand 624 states and 660 transitions. Second operand 5 states. [2020-10-13 06:04:17,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:17,250 INFO L93 Difference]: Finished difference Result 1260 states and 1343 transitions. [2020-10-13 06:04:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:17,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 284 [2020-10-13 06:04:17,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:17,255 INFO L225 Difference]: With dead ends: 1260 [2020-10-13 06:04:17,255 INFO L226 Difference]: Without dead ends: 624 [2020-10-13 06:04:17,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:17,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-10-13 06:04:17,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2020-10-13 06:04:17,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-10-13 06:04:17,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 658 transitions. [2020-10-13 06:04:17,273 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 658 transitions. Word has length 284 [2020-10-13 06:04:17,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:17,273 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 658 transitions. [2020-10-13 06:04:17,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:17,273 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 658 transitions. [2020-10-13 06:04:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-13 06:04:17,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:17,278 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:17,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:04:17,279 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:17,279 INFO L82 PathProgramCache]: Analyzing trace with hash -2104302557, now seen corresponding path program 1 times [2020-10-13 06:04:17,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:17,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363561415] [2020-10-13 06:04:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-13 06:04:17,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-13 06:04:17,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:04:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:04:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:17,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:17,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:17,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:17,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:17,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:17,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:17,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:17,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:04:17,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:17,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:17,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:04:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:04:17,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:17,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:17,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:04:17,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:04:18,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363561415] [2020-10-13 06:04:18,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:18,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:18,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082155749] [2020-10-13 06:04:18,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:18,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:18,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:18,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:18,102 INFO L87 Difference]: Start difference. First operand 624 states and 658 transitions. Second operand 7 states. [2020-10-13 06:04:18,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:18,921 INFO L93 Difference]: Finished difference Result 1258 states and 1336 transitions. [2020-10-13 06:04:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:18,922 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-10-13 06:04:18,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:18,925 INFO L225 Difference]: With dead ends: 1258 [2020-10-13 06:04:18,925 INFO L226 Difference]: Without dead ends: 624 [2020-10-13 06:04:18,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:04:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-10-13 06:04:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2020-10-13 06:04:18,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-10-13 06:04:18,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 657 transitions. [2020-10-13 06:04:18,938 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 657 transitions. Word has length 295 [2020-10-13 06:04:18,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:18,938 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 657 transitions. [2020-10-13 06:04:18,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:18,939 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 657 transitions. [2020-10-13 06:04:18,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-13 06:04:18,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:18,941 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:18,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:04:18,942 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:18,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:18,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1245204543, now seen corresponding path program 1 times [2020-10-13 06:04:18,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:18,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266774482] [2020-10-13 06:04:18,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-13 06:04:19,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-13 06:04:19,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:04:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:04:19,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:19,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:19,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:19,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:19,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:19,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:19,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:04:19,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:04:19,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:19,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:04:19,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:04:19,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266774482] [2020-10-13 06:04:19,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:19,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:04:19,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515856953] [2020-10-13 06:04:19,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:04:19,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:19,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:04:19,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:19,983 INFO L87 Difference]: Start difference. First operand 624 states and 657 transitions. Second operand 6 states. [2020-10-13 06:04:20,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:20,737 INFO L93 Difference]: Finished difference Result 1267 states and 1343 transitions. [2020-10-13 06:04:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:20,741 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 299 [2020-10-13 06:04:20,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:20,744 INFO L225 Difference]: With dead ends: 1267 [2020-10-13 06:04:20,744 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 06:04:20,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 06:04:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2020-10-13 06:04:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-13 06:04:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 593 transitions. [2020-10-13 06:04:20,758 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 593 transitions. Word has length 299 [2020-10-13 06:04:20,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:20,758 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 593 transitions. [2020-10-13 06:04:20,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:04:20,759 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 593 transitions. [2020-10-13 06:04:20,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-13 06:04:20,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:20,761 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:20,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:04:20,762 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:20,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:20,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1480582988, now seen corresponding path program 1 times [2020-10-13 06:04:20,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:20,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848160721] [2020-10-13 06:04:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:20,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:20,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-13 06:04:21,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:21,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 741 [2020-10-13 06:04:21,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:04:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:04:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:21,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:21,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:21,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:21,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:21,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:21,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:21,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:21,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:21,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:21,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:21,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:21,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:21,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:21,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:21,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:04:21,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 06:04:21,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:04:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:04:22,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848160721] [2020-10-13 06:04:22,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:22,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:22,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942498861] [2020-10-13 06:04:22,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:22,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:22,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:22,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:22,004 INFO L87 Difference]: Start difference. First operand 564 states and 593 transitions. Second operand 5 states. [2020-10-13 06:04:22,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:22,738 INFO L93 Difference]: Finished difference Result 1142 states and 1208 transitions. [2020-10-13 06:04:22,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:22,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 311 [2020-10-13 06:04:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:22,741 INFO L225 Difference]: With dead ends: 1142 [2020-10-13 06:04:22,741 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 06:04:22,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:22,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 06:04:22,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 562. [2020-10-13 06:04:22,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-13 06:04:22,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 588 transitions. [2020-10-13 06:04:22,752 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 588 transitions. Word has length 311 [2020-10-13 06:04:22,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:22,753 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 588 transitions. [2020-10-13 06:04:22,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:22,753 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 588 transitions. [2020-10-13 06:04:22,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-13 06:04:22,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:22,756 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:22,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:04:22,756 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:22,756 INFO L82 PathProgramCache]: Analyzing trace with hash 946338027, now seen corresponding path program 1 times [2020-10-13 06:04:22,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:22,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871981333] [2020-10-13 06:04:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:22,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-13 06:04:23,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:23,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-10-13 06:04:23,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:04:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:04:23,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:23,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:23,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:23,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:23,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:23,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:23,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:23,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:23,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:23,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:23,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:04:23,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:23,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:04:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:04:23,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:04:23,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:04:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:04:23,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871981333] [2020-10-13 06:04:23,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:23,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:04:23,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676678687] [2020-10-13 06:04:23,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:04:23,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:23,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:04:23,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:23,849 INFO L87 Difference]: Start difference. First operand 562 states and 588 transitions. Second operand 6 states. [2020-10-13 06:04:24,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:24,548 INFO L93 Difference]: Finished difference Result 1133 states and 1193 transitions. [2020-10-13 06:04:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:24,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 314 [2020-10-13 06:04:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:24,550 INFO L225 Difference]: With dead ends: 1133 [2020-10-13 06:04:24,550 INFO L226 Difference]: Without dead ends: 562 [2020-10-13 06:04:24,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:24,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-10-13 06:04:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2020-10-13 06:04:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-13 06:04:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 587 transitions. [2020-10-13 06:04:24,562 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 587 transitions. Word has length 314 [2020-10-13 06:04:24,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:24,563 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 587 transitions. [2020-10-13 06:04:24,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:04:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 587 transitions. [2020-10-13 06:04:24,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-13 06:04:24,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:24,566 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:04:24,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:04:24,566 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:24,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:24,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1758200139, now seen corresponding path program 1 times [2020-10-13 06:04:24,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:24,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397382079] [2020-10-13 06:04:24,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:24,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:24,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:25,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-13 06:04:25,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:25,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 639 [2020-10-13 06:04:25,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:04:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:04:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:25,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:25,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:25,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:25,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:25,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:25,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:25,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:25,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:25,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:25,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:25,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:25,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:25,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:25,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:25,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:25,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:25,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:25,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:25,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:25,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:25,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:25,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:25,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:25,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:25,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:25,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:25,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:25,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:25,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:25,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:25,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:25,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:25,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:25,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:25,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:25,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:25,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:25,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:25,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:25,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:25,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:25,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:04:25,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:25,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:04:25,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:04:25,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:25,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:04:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:25,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:25,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:04:25,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:25,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 06:04:25,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:25,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:25,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:04:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:04:25,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-13 06:04:25,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397382079] [2020-10-13 06:04:25,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:25,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:25,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545821743] [2020-10-13 06:04:25,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:25,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:25,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:25,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:25,647 INFO L87 Difference]: Start difference. First operand 562 states and 587 transitions. Second operand 7 states. [2020-10-13 06:04:26,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:26,707 INFO L93 Difference]: Finished difference Result 1197 states and 1266 transitions. [2020-10-13 06:04:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:04:26,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2020-10-13 06:04:26,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:26,710 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 06:04:26,711 INFO L226 Difference]: Without dead ends: 701 [2020-10-13 06:04:26,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:04:26,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-10-13 06:04:26,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2020-10-13 06:04:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-10-13 06:04:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 735 transitions. [2020-10-13 06:04:26,724 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 735 transitions. Word has length 315 [2020-10-13 06:04:26,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:26,725 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 735 transitions. [2020-10-13 06:04:26,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 735 transitions. [2020-10-13 06:04:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-13 06:04:26,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:26,728 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:26,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:04:26,728 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:26,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:26,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1628425379, now seen corresponding path program 1 times [2020-10-13 06:04:26,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:26,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243006727] [2020-10-13 06:04:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:26,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 355 [2020-10-13 06:04:27,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-13 06:04:27,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:04:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:04:27,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:27,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:27,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:27,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:27,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:27,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:27,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:27,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:27,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:27,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:04:27,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:04:27,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:27,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:04:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:04:27,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:04:27,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:04:27,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:04:27,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243006727] [2020-10-13 06:04:27,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:27,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:04:27,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258363052] [2020-10-13 06:04:27,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:04:27,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:27,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:04:27,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:27,802 INFO L87 Difference]: Start difference. First operand 701 states and 735 transitions. Second operand 6 states. [2020-10-13 06:04:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:28,487 INFO L93 Difference]: Finished difference Result 1271 states and 1339 transitions. [2020-10-13 06:04:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:28,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 335 [2020-10-13 06:04:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:28,488 INFO L225 Difference]: With dead ends: 1271 [2020-10-13 06:04:28,488 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:04:28,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:28,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:04:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:04:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:04:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:04:28,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 335 [2020-10-13 06:04:28,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:28,492 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:04:28,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:04:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:04:28,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:04:28,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:04:28,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:04:29,281 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-13 06:04:29,492 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 190 [2020-10-13 06:04:33,207 WARN L193 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 312 DAG size of output: 193 [2020-10-13 06:04:34,421 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 184 DAG size of output: 120 [2020-10-13 06:04:35,680 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 184 DAG size of output: 93 [2020-10-13 06:04:35,685 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:04:35,685 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:04:35,685 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,686 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:04:35,687 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:04:35,688 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 455) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:04:35,689 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:04:35,690 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:04:35,691 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,692 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:04:35,693 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:04:35,694 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,695 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:04:35,696 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:04:35,697 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:04:35,698 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:04:35,698 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:04:35,698 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:04:35,698 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:04:35,698 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:04:35,698 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:04:35,698 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:04:35,699 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse37 (= |old(~a20~0)| 1)) (.cse47 (= |old(~a17~0)| 1)) (.cse8 (<= ~a21~0 1)) (.cse9 (<= 1 ~a21~0)) (.cse10 (<= ~a8~0 15)) (.cse11 (<= 15 ~a8~0)) (.cse49 (not (<= |old(~a7~0)| 0))) (.cse30 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= ~a16~0 |old(~a16~0)|)) (.cse32 (= ~a8~0 15)) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse39 (= ~a21~0 1)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse50 (= 14 ~a8~0)) (.cse33 (= ~a16~0 4))) (let ((.cse23 (and .cse5 .cse39 .cse6 .cse50 .cse33 (= ~a17~0 ~a7~0))) (.cse25 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse34 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse40 (= 5 ~a16~0)) (.cse41 (not (= 5 |old(~a16~0)|))) (.cse4 (<= 1 ~a7~0)) (.cse12 (<= ~a7~0 1)) (.cse14 (not (<= 1 |old(~a7~0)|))) (.cse16 (not (<= |old(~a7~0)| 1))) (.cse29 (not (= 0 |old(~a17~0)|))) (.cse43 (not (= 6 |old(~a16~0)|))) (.cse44 (and .cse30 .cse5 .cse39 .cse6 .cse7 .cse32)) (.cse31 (= ~a8~0 |old(~a8~0)|)) (.cse45 (not (<= |old(~a8~0)| 14))) (.cse20 (and .cse49 (not (<= 2 |old(~a7~0)|)))) (.cse0 (not (<= 5 |old(~a16~0)|))) (.cse1 (not (<= |old(~a8~0)| 15))) (.cse2 (not (<= |old(~a21~0)| 1))) (.cse3 (not (<= |old(~a16~0)| 5))) (.cse13 (not (<= 15 |old(~a8~0)|))) (.cse15 (not (<= 1 |old(~a21~0)|))) (.cse22 (and .cse30 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11)) (.cse42 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse48 (and .cse30 .cse5 .cse39 .cse6 .cse50 .cse33)) (.cse36 (not .cse47)) (.cse24 (not (= 14 |old(~a8~0)|))) (.cse26 (not .cse37)) (.cse21 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse17 (not (<= |old(~a17~0)| 0))) (.cse46 (and .cse30 .cse5 .cse39 .cse6 .cse32 .cse33)) (.cse35 (not (= 15 |old(~a8~0)|))) (.cse27 (not (= |old(~a21~0)| 1))) (.cse18 (not (= ~a12~0 8))) (.cse19 (not (<= |old(~a20~0)| 0))) (.cse28 (not (= 4 |old(~a16~0)|))) (.cse38 (= |old(~a7~0)| 1))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (or .cse20 (not (<= |old(~a16~0)| 6)) .cse1 .cse21 (not (< 5 |old(~a16~0)|)) .cse2 .cse13 .cse15 .cse22 (not (<= |old(~a17~0)| 1)) .cse18 .cse19) (or .cse23 .cse24 .cse25 .cse26 .cse27 .cse18 .cse28 .cse29) (or (not (<= |old(~a8~0)| 13)) (and .cse5 .cse30 (= ~a21~0 |old(~a21~0)|) .cse6 .cse7 .cse31)) (or (and .cse5 (= ~a21~0 ~a7~0) .cse6 .cse32 .cse8 .cse33 .cse9) .cse2 .cse34 .cse15 .cse35 .cse18 (not (= |old(~a7~0)| |old(~a21~0)|)) .cse28 .cse29) (or .cse36 .cse37 (and .cse30 .cse6 .cse32 .cse8 .cse33 .cse9 (= ~a17~0 1)) .cse21 .cse35 .cse27 .cse18 .cse28 .cse38) (or .cse23 .cse24 .cse25 .cse34 .cse27 .cse18 .cse28 .cse29) (or (and .cse30 .cse5 .cse39 .cse6 .cse32 .cse40) .cse37 .cse21 .cse41 .cse35 .cse27 .cse18 .cse38) (or (and .cse5 .cse39 .cse6 .cse32 .cse40 (= ~a7~0 0)) .cse36 .cse41 .cse42 .cse35 .cse27 .cse18 (not (= |old(~a7~0)| 0))) (or .cse21 .cse43 .cse44 .cse17 .cse35 .cse27 .cse18 .cse38) (or .cse0 .cse2 (and .cse4 .cse5 .cse6 .cse7 .cse31 .cse8 .cse9 .cse12) .cse3 .cse14 .cse15 .cse16 .cse45 .cse17 .cse18 (not (<= |old(~a20~0)| 1))) (or .cse26 .cse46 .cse42 .cse35 .cse27 .cse18 .cse28 .cse38 .cse29) (or .cse43 .cse44 .cse26 .cse47 .cse42 .cse35 .cse27 .cse18 .cse38) (or .cse48 .cse24 (not .cse38) .cse17 .cse27 .cse18 .cse19 .cse28) (or .cse0 .cse49 .cse2 .cse3 .cse15 (and .cse30 .cse5 .cse6 .cse7 .cse31 .cse8 .cse9) .cse45 .cse17 .cse18 .cse19) (or .cse20 .cse0 .cse1 .cse2 .cse3 .cse13 .cse15 .cse22 .cse17 .cse42 .cse18) (or .cse48 .cse36 .cse24 .cse49 .cse26 .cse27 .cse18 .cse28) (or .cse21 .cse17 .cse46 .cse35 .cse27 .cse18 .cse19 .cse28 .cse38)))) [2020-10-13 06:04:35,699 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:04:35,700 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,701 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:04:35,702 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:04:35,703 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:04:35,704 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:04:35,704 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:04:35,704 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:04:35,704 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:04:35,704 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:04:35,704 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:04:35,704 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:04:35,704 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-13 06:04:35,705 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:04:35,705 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:04:35,705 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:04:35,705 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:04:35,706 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse25 (= ~a7~0 1)) (.cse26 (<= ~a7~0 0))) (let ((.cse5 (= 5 ~a16~0)) (.cse19 (<= 1 ~a7~0)) (.cse20 (<= ~a7~0 1)) (.cse22 (<= ~a8~0 14)) (.cse12 (<= ~a16~0 5)) (.cse15 (<= 5 ~a16~0)) (.cse14 (or (< 1 ~a7~0) .cse26)) (.cse16 (<= ~a8~0 15)) (.cse17 (<= 15 ~a8~0)) (.cse8 (= ~a20~0 ~a17~0)) (.cse24 (= ~a17~0 ~a7~0)) (.cse11 (= ~a17~0 0)) (.cse23 (= 14 ~a8~0)) (.cse0 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse13 (<= ~a17~0 0)) (.cse9 (= ~a16~0 4)) (.cse21 (<= ~a20~0 0)) (.cse18 (= ~a16~0 6)) (.cse7 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0))) (.cse10 (= ~a17~0 1)) (.cse1 (= ~a8~0 15)) (.cse6 (= ~a20~0 1)) (.cse2 (<= ~a21~0 1)) (.cse3 (<= 1 ~a21~0)) (.cse4 (not .cse25))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not .cse6)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) .cse7 .cse1 .cse5 (= ~a7~0 0)) (and (not .cse8) .cse0 .cse1 .cse2 .cse9 .cse3 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and .cse7 .cse1 .cse6 .cse2 .cse9 .cse3 .cse4 .cse11) (not (= |old(~a21~0)| 1)) (and .cse12 .cse7 .cse13 .cse14 .cse2 .cse15 .cse3 .cse16 .cse17) (and .cse18 .cse0 .cse13 .cse1 .cse14 .cse2 .cse3) (and .cse19 .cse12 .cse13 .cse2 .cse3 .cse15 .cse16 .cse20 .cse21) (and .cse19 .cse22 .cse12 .cse13 .cse2 (<= ~a20~0 1) .cse15 .cse3 .cse20) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse8 .cse23 .cse2 .cse9 .cse3 .cse24 .cse11) (and .cse25 .cse23 .cse13 .cse2 .cse9 .cse3 .cse21) (and .cse22 .cse12 .cse13 .cse26 .cse2 .cse3 .cse15 .cse21) (and (<= ~a16~0 6) (<= 6 ~a16~0) .cse0 .cse14 (<= ~a17~0 1) .cse2 .cse3 .cse16 .cse17 .cse21) (and .cse8 .cse25 .cse1 .cse2 .cse9 .cse3 .cse11) (not (= |old(~a17~0)| 1)) (and .cse23 .cse6 .cse2 .cse9 .cse3 .cse24 .cse11) (and .cse23 .cse26 .cse6 .cse2 .cse9 .cse3 .cse10) (and .cse0 .cse13 .cse1 .cse2 .cse9 .cse3 .cse4 .cse21) (and .cse18 .cse7 (not .cse10) .cse1 .cse6 .cse2 .cse3 .cse4) (<= ~a8~0 13)))) [2020-10-13 06:04:35,706 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:04:35,706 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:04:35,706 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse19 (= ~a7~0 1)) (.cse21 (<= ~a7~0 0))) (let ((.cse10 (<= ~a16~0 5)) (.cse12 (<= 5 ~a16~0)) (.cse13 (<= ~a8~0 15)) (.cse14 (<= 15 ~a8~0)) (.cse11 (or (< 1 ~a7~0) .cse21)) (.cse18 (= ~a17~0 ~a7~0)) (.cse5 (= ~a17~0 0)) (.cse7 (<= ~a17~0 0)) (.cse9 (<= ~a20~0 0)) (.cse8 (= 5 ~a16~0)) (.cse17 (= ~a16~0 6)) (.cse6 (= 14 ~a8~0)) (.cse16 (= ~a20~0 1)) (.cse0 (= ~a20~0 ~a17~0)) (.cse1 (= ~a8~0 15)) (.cse2 (<= ~a21~0 1)) (.cse3 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse15 (not .cse19)) (.cse20 (= ~a17~0 1))) (or (not (= |old(~a20~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (= |old(~a21~0)| 1)) (and .cse6 .cse7 .cse2 .cse4 .cse8 (< ~a7~0 (+ ~a21~0 1)) .cse9) (and .cse10 .cse7 .cse11 .cse2 .cse4 .cse12 .cse13 .cse14) (and (<= 1 ~a7~0) (<= ~a8~0 14) .cse10 .cse7 .cse2 (<= ~a20~0 1) .cse12 .cse4 (<= ~a7~0 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse1 .cse2 .cse4 .cse15 .cse8 (not .cse16)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and (<= ~a16~0 6) (<= 6 ~a16~0) .cse11 (<= ~a17~0 1) .cse2 .cse4 .cse13 .cse14 .cse9) (and .cse10 .cse7 .cse2 .cse4 .cse12 .cse13 .cse14 .cse9) (and .cse17 .cse7 .cse1 .cse11 .cse2 .cse4) (and .cse1 .cse16 .cse2 .cse3 .cse4 .cse15 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse18 .cse5) (and .cse19 .cse6 .cse7 .cse2 .cse3 .cse4 .cse9) (not (= |old(~a17~0)| 1)) (and .cse6 .cse16 .cse2 .cse3 .cse4 .cse18 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse15 .cse9) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) .cse1 .cse8 (= ~a7~0 0)) (and .cse17 (not .cse20) .cse1 .cse16 .cse2 .cse4 .cse15) (and .cse6 .cse21 .cse16 .cse2 .cse3 .cse4 .cse20) (and (not .cse0) .cse1 .cse2 .cse3 .cse4 .cse15 .cse20) (<= ~a8~0 13)))) [2020-10-13 06:04:35,706 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:04:35,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:04:35 BoogieIcfgContainer [2020-10-13 06:04:35,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:04:35,760 INFO L168 Benchmark]: Toolchain (without parser) took 115804.02 ms. Allocated memory was 142.6 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 104.0 MB in the beginning and 629.3 MB in the end (delta: -525.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-10-13 06:04:35,761 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:04:35,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.29 ms. Allocated memory was 142.6 MB in the beginning and 206.6 MB in the end (delta: 64.0 MB). Free memory was 103.8 MB in the beginning and 172.2 MB in the end (delta: -68.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:35,761 INFO L168 Benchmark]: Boogie Preprocessor took 105.90 ms. Allocated memory is still 206.6 MB. Free memory was 172.2 MB in the beginning and 167.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:35,762 INFO L168 Benchmark]: RCFGBuilder took 1160.10 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 167.6 MB in the beginning and 174.4 MB in the end (delta: -6.8 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:35,763 INFO L168 Benchmark]: TraceAbstraction took 113865.05 ms. Allocated memory was 237.0 MB in the beginning and 1.2 GB in the end (delta: 966.3 MB). Free memory was 173.0 MB in the beginning and 629.3 MB in the end (delta: -456.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-10-13 06:04:35,764 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.29 ms. Allocated memory was 142.6 MB in the beginning and 206.6 MB in the end (delta: 64.0 MB). Free memory was 103.8 MB in the beginning and 172.2 MB in the end (delta: -68.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.90 ms. Allocated memory is still 206.6 MB. Free memory was 172.2 MB in the beginning and 167.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1160.10 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 167.6 MB in the beginning and 174.4 MB in the end (delta: -6.8 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 113865.05 ms. Allocated memory was 237.0 MB in the beginning and 1.2 GB in the end (delta: 966.3 MB). Free memory was 173.0 MB in the beginning and 629.3 MB in the end (delta: -456.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 455]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((!(\old(a20) == 1) || (((((a20 == a17 && a8 == 15) && a21 <= 1) && a16 == 4) && 1 <= a21) && a17 == 0)) || !(\old(a21) == 1)) || ((((((14 == a8 && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 == a16) && a7 < a21 + 1) && a20 <= 0)) || (((((((a16 <= 5 && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || ((((((((1 <= a7 && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && a20 <= 1) && 5 <= a16) && 1 <= a21) && a7 <= 1)) || !(5 == \old(a16))) || !(15 == \old(a8))) || (((((a8 == 15 && a21 <= 1) && 1 <= a21) && !(a7 == 1)) && 5 == a16) && !(a20 == 1))) || !(\old(a7) == 0)) || !(a12 == 8)) || ((((((((a16 <= 6 && 6 <= a16) && (1 < a7 || a7 <= 0)) && a17 <= 1) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8) && a20 <= 0)) || (((((((a16 <= 5 && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8) && a20 <= 0)) || (((((a16 == 6 && a17 <= 0) && a8 == 15) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21)) || ((((((a8 == 15 && a20 == 1) && a21 <= 1) && a16 == 4) && 1 <= a21) && !(a7 == 1)) && a17 == 0)) || ((((((a20 == a17 && 14 == a8) && a21 <= 1) && a16 == 4) && 1 <= a21) && a17 == a7) && a17 == 0)) || ((((((a7 == 1 && 14 == a8) && a17 <= 0) && a21 <= 1) && a16 == 4) && 1 <= a21) && a20 <= 0)) || !(\old(a17) == 1)) || ((((((14 == a8 && a20 == 1) && a21 <= 1) && a16 == 4) && 1 <= a21) && a17 == a7) && a17 == 0)) || ((((((a17 <= 0 && a8 == 15) && a21 <= 1) && a16 == 4) && 1 <= a21) && !(a7 == 1)) && a20 <= 0)) || ((((a17 == \old(a17) && a21 == 1) && a8 == 15) && 5 == a16) && a7 == 0)) || ((((((a16 == 6 && !(a17 == 1)) && a8 == 15) && a20 == 1) && a21 <= 1) && 1 <= a21) && !(a7 == 1))) || ((((((14 == a8 && a7 <= 0) && a20 == 1) && a21 <= 1) && a16 == 4) && 1 <= a21) && a17 == 1)) || ((((((!(a20 == a17) && a8 == 15) && a21 <= 1) && a16 == 4) && 1 <= a21) && !(a7 == 1)) && a17 == 1)) || a8 <= 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 106.5s, OverallIterations: 26, TraceHistogramMax: 7, AutomataDifference: 47.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 674 SDtfs, 9422 SDslu, 902 SDs, 0 SdLazy, 18210 SolverSat, 1105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 634 GetRequests, 278 SyntacticMatches, 16 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 33.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=734occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 26 MinimizatonAttempts, 493 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 162 PreInvPairs, 211 NumberOfFragments, 2593 HoareAnnotationTreeSize, 162 FomulaSimplifications, 6983 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6119 FormulaSimplificationTreeSizeReductionInter, 6.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 53.8s InterpolantComputationTime, 5561 NumberOfCodeBlocks, 5561 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 5535 ConstructedInterpolants, 0 QuantifiedInterpolants, 13246213 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 1 PerfectInterpolantSequences, 5870/5946 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...