/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_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:02:47,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:02:47,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:02:47,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:02:47,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:02:47,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:02:47,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:02:47,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:02:47,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:02:47,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:02:47,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:02:47,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:02:47,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:02:47,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:02:47,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:02:47,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:02:47,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:02:47,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:02:47,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:02:47,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:02:47,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:02:47,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:02:47,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:02:47,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:02:47,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:02:47,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:02:47,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:02:47,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:02:47,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:02:47,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:02:47,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:02:47,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:02:47,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:02:47,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:02:47,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:02:47,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:02:47,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:02:47,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:02:47,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:02:47,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:02:47,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:02:47,419 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 06:02:47,441 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:02:47,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:02:47,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:02:47,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:02:47,443 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:02:47,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:02:47,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:02:47,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:02:47,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:02:47,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:02:47,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:02:47,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:02:47,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:02:47,445 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:02:47,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:02:47,445 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:02:47,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:02:47,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:02:47,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:02:47,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:02:47,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:02:47,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:02:47,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:02:47,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:02:47,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:02:47,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:02:47,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:02:47,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:02:47,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:02:47,448 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 06:02:47,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:02:47,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:02:47,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:02:47,798 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:02:47,799 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:02:47,799 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label30.c [2020-10-13 06:02:47,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e4ef66ff1/ec90b440f73b47abac7d7389025bb218/FLAG615fb1417 [2020-10-13 06:02:48,427 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:02:48,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label30.c [2020-10-13 06:02:48,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e4ef66ff1/ec90b440f73b47abac7d7389025bb218/FLAG615fb1417 [2020-10-13 06:02:48,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e4ef66ff1/ec90b440f73b47abac7d7389025bb218 [2020-10-13 06:02:48,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:02:48,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:02:48,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:02:48,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:02:48,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:02:48,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:02:48" (1/1) ... [2020-10-13 06:02:48,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c46e88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:48, skipping insertion in model container [2020-10-13 06:02:48,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:02:48" (1/1) ... [2020-10-13 06:02:48,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:02:48,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:02:49,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:02:49,346 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:02:49,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:02:49,528 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:02:49,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49 WrapperNode [2020-10-13 06:02:49,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:02:49,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:02:49,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:02:49,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:02:49,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (1/1) ... [2020-10-13 06:02:49,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (1/1) ... [2020-10-13 06:02:49,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (1/1) ... [2020-10-13 06:02:49,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (1/1) ... [2020-10-13 06:02:49,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (1/1) ... [2020-10-13 06:02:49,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (1/1) ... [2020-10-13 06:02:49,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (1/1) ... [2020-10-13 06:02:49,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:02:49,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:02:49,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:02:49,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:02:49,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (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 06:02:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:02:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:02:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:02:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:02:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:02:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:02:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:02:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:02:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:02:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:02:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:02:50,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:02:50,992 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:02:50,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:02:50 BoogieIcfgContainer [2020-10-13 06:02:50,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:02:51,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:02:51,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:02:51,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:02:51,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:02:48" (1/3) ... [2020-10-13 06:02:51,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc079f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:02:51, skipping insertion in model container [2020-10-13 06:02:51,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:49" (2/3) ... [2020-10-13 06:02:51,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc079f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:02:51, skipping insertion in model container [2020-10-13 06:02:51,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:02:50" (3/3) ... [2020-10-13 06:02:51,007 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label30.c [2020-10-13 06:02:51,017 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:02:51,025 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:02:51,039 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:02:51,065 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:02:51,066 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:02:51,066 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:02:51,066 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:02:51,066 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:02:51,066 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:02:51,066 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:02:51,067 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:02:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:02:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-13 06:02:51,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:51,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:51,105 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:51,111 INFO L82 PathProgramCache]: Analyzing trace with hash -152148385, now seen corresponding path program 1 times [2020-10-13 06:02:51,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:51,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518462133] [2020-10-13 06:02:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:52,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 06:02:52,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:52,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1546 [2020-10-13 06:02:52,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:02:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:02:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:02:52,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:02:53,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:53,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:53,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:53,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:53,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:53,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:02:53,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:02:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:53,830 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 06:02:53,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518462133] [2020-10-13 06:02:53,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:02:53,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:02:53,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199416827] [2020-10-13 06:02:53,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:53,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:53,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:53,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:53,859 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 06:02:54,037 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-13 06:02:54,303 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-10-13 06:02:54,571 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-10-13 06:02:54,825 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2020-10-13 06:02:55,101 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:02:55,359 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-10-13 06:02:55,790 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2020-10-13 06:02:56,347 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-13 06:02:56,664 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2020-10-13 06:02:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:57,768 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:02:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:57,770 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-13 06:02:57,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:57,784 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:02:57,784 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:02:57,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:02:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:02:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:02:57,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:02:57,853 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 131 [2020-10-13 06:02:57,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:57,854 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:02:57,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:02:57,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 06:02:57,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:57,859 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:57,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:02:57,860 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:57,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:57,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1846050396, now seen corresponding path program 1 times [2020-10-13 06:02:57,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:57,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087188351] [2020-10-13 06:02:57,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:57,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:58,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:59,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 06:03:00,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:00,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2241 [2020-10-13 06:03:00,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:03:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:00,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:00,931 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:03:01,137 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-13 06:03:01,354 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-13 06:03:01,622 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 45 [2020-10-13 06:03:01,825 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2020-10-13 06:03:02,018 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2020-10-13 06:03:02,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:02,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:02,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:02,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:02,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:02,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:03:02,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:02,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:02,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:02,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:02,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:02,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:02,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:02,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:02,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:02,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:02,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:03:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:02,338 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 06:03:02,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087188351] [2020-10-13 06:03:02,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:02,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:02,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050448969] [2020-10-13 06:03:02,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:02,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:02,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:02,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:02,346 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:03:02,653 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:03:02,821 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:03:03,416 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-13 06:03:04,241 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-13 06:03:04,668 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-13 06:03:05,172 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-13 06:03:05,483 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-13 06:03:06,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:06,194 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:03:06,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:03:06,197 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 139 [2020-10-13 06:03:06,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:06,205 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:03:06,206 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:03:06,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:03:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:03:06,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:03:06,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:03:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:03:06,262 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 139 [2020-10-13 06:03:06,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:06,264 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:03:06,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:06,264 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:03:06,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-13 06:03:06,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:06,278 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:06,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:03:06,278 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:06,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1563736858, now seen corresponding path program 1 times [2020-10-13 06:03:06,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:06,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024542629] [2020-10-13 06:03:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:06,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:06,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 06:03:07,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:07,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 814 [2020-10-13 06:03:07,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:03:07,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:07,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:07,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:07,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:07,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:03:07,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:07,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,715 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 06:03:07,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024542629] [2020-10-13 06:03:07,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:07,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:07,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347998471] [2020-10-13 06:03:07,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:07,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:07,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:07,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:07,718 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:03:08,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:08,788 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 06:03:08,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:08,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-10-13 06:03:08,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:08,793 INFO L225 Difference]: With dead ends: 587 [2020-10-13 06:03:08,793 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 06:03:08,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:08,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 06:03:08,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 06:03:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:03:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 06:03:08,813 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 142 [2020-10-13 06:03:08,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:08,814 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 06:03:08,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:08,814 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 06:03:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-13 06:03:08,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:08,817 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:08,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:03:08,817 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:08,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:08,818 INFO L82 PathProgramCache]: Analyzing trace with hash 6842466, now seen corresponding path program 1 times [2020-10-13 06:03:08,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:08,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123377962] [2020-10-13 06:03:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:08,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-13 06:03:10,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:10,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2038 [2020-10-13 06:03:10,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:10,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:03:10,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:10,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:11,531 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:03:11,794 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:03:12,038 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-10-13 06:03:12,249 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 45 [2020-10-13 06:03:12,501 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 42 [2020-10-13 06:03:12,695 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 39 [2020-10-13 06:03:12,869 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 39 [2020-10-13 06:03:12,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:12,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:12,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:12,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:12,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:12,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:12,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:12,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:12,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:12,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:12,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:13,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 06:03:13,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:03:13,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,249 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 06:03:13,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123377962] [2020-10-13 06:03:13,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:13,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:13,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925840009] [2020-10-13 06:03:13,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:13,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:13,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:13,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:13,252 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 06:03:14,077 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:03:14,670 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 114 [2020-10-13 06:03:15,217 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2020-10-13 06:03:15,551 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2020-10-13 06:03:15,860 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 105 [2020-10-13 06:03:16,484 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2020-10-13 06:03:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:17,129 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 06:03:17,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:03:17,130 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 172 [2020-10-13 06:03:17,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:17,134 INFO L225 Difference]: With dead ends: 552 [2020-10-13 06:03:17,134 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 06:03:17,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:03:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 06:03:17,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 06:03:17,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 06:03:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 06:03:17,160 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 172 [2020-10-13 06:03:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:17,161 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 06:03:17,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 06:03:17,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-13 06:03:17,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:17,164 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:17,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:03:17,164 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:17,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:17,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1788384067, now seen corresponding path program 1 times [2020-10-13 06:03:17,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:17,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860042829] [2020-10-13 06:03:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:17,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:21,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-13 06:03:21,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:21,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3991 [2020-10-13 06:03:21,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:21,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:03:21,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:03:21,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:21,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:21,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:21,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:21,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:21,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:21,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:21,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:21,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:21,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:03:21,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:21,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 06:03:21,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:03:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:21,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:03:21,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:21,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:03:21,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:03:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:22,083 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 06:03:22,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860042829] [2020-10-13 06:03:22,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:22,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:22,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964546543] [2020-10-13 06:03:22,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:22,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:22,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:22,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:22,086 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 14 states. [2020-10-13 06:03:22,594 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2020-10-13 06:03:22,802 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-13 06:03:23,052 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-13 06:03:23,388 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:03:23,670 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:03:23,889 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:03:24,225 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-13 06:03:25,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:25,558 INFO L93 Difference]: Finished difference Result 718 states and 929 transitions. [2020-10-13 06:03:25,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:03:25,559 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 189 [2020-10-13 06:03:25,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:25,563 INFO L225 Difference]: With dead ends: 718 [2020-10-13 06:03:25,563 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:03:25,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:03:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:03:25,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 393. [2020-10-13 06:03:25,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-13 06:03:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 458 transitions. [2020-10-13 06:03:25,583 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 458 transitions. Word has length 189 [2020-10-13 06:03:25,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:25,584 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 458 transitions. [2020-10-13 06:03:25,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 458 transitions. [2020-10-13 06:03:25,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-13 06:03:25,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:25,587 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:25,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:03:25,588 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:25,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1865611058, now seen corresponding path program 1 times [2020-10-13 06:03:25,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:25,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527853289] [2020-10-13 06:03:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:25,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:25,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:27,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:27,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-13 06:03:27,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:27,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1522 [2020-10-13 06:03:27,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:27,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:27,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:03:27,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:03:27,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:27,599 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:03:28,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:28,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:28,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:28,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:28,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:28,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:28,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:28,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:28,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:28,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:28,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:28,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:28,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:28,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:28,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:28,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:28,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:03:28,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:03:28,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:28,413 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 06:03:28,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527853289] [2020-10-13 06:03:28,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:28,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:28,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520073277] [2020-10-13 06:03:28,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:28,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:28,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:28,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:28,415 INFO L87 Difference]: Start difference. First operand 393 states and 458 transitions. Second operand 13 states. [2020-10-13 06:03:29,078 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:03:29,519 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:03:30,025 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:03:30,360 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:03:30,651 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:03:30,970 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:03:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:31,326 INFO L93 Difference]: Finished difference Result 791 states and 969 transitions. [2020-10-13 06:03:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:31,329 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 194 [2020-10-13 06:03:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:31,334 INFO L225 Difference]: With dead ends: 791 [2020-10-13 06:03:31,334 INFO L226 Difference]: Without dead ends: 444 [2020-10-13 06:03:31,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-10-13 06:03:31,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2020-10-13 06:03:31,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-13 06:03:31,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 510 transitions. [2020-10-13 06:03:31,366 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 510 transitions. Word has length 194 [2020-10-13 06:03:31,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:31,367 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 510 transitions. [2020-10-13 06:03:31,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:31,370 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 510 transitions. [2020-10-13 06:03:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-13 06:03:31,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:31,376 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:31,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:03:31,376 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:31,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:31,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1506996305, now seen corresponding path program 1 times [2020-10-13 06:03:31,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:31,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964958681] [2020-10-13 06:03:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:31,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:31,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:33,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:33,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 06:03:33,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2149 [2020-10-13 06:03:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:03:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:03:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:34,010 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:03:34,150 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2020-10-13 06:03:34,272 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-10-13 06:03:34,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:34,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:34,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:34,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:34,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:34,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:34,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:34,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:34,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:34,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:34,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:03:34,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:34,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:34,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:34,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:34,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:03:34,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:03:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:35,089 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 06:03:35,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964958681] [2020-10-13 06:03:35,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:35,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:35,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983275098] [2020-10-13 06:03:35,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:35,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:35,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:35,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:35,092 INFO L87 Difference]: Start difference. First operand 444 states and 510 transitions. Second operand 13 states. [2020-10-13 06:03:35,907 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:03:36,052 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:03:36,390 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:03:36,783 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:03:37,043 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:03:37,450 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:03:37,799 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:03:38,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:38,317 INFO L93 Difference]: Finished difference Result 884 states and 1060 transitions. [2020-10-13 06:03:38,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:38,320 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 205 [2020-10-13 06:03:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:38,323 INFO L225 Difference]: With dead ends: 884 [2020-10-13 06:03:38,323 INFO L226 Difference]: Without dead ends: 506 [2020-10-13 06:03:38,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:03:38,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-10-13 06:03:38,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2020-10-13 06:03:38,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2020-10-13 06:03:38,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 578 transitions. [2020-10-13 06:03:38,344 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 578 transitions. Word has length 205 [2020-10-13 06:03:38,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:38,345 INFO L479 AbstractCegarLoop]: Abstraction has 506 states and 578 transitions. [2020-10-13 06:03:38,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:38,345 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 578 transitions. [2020-10-13 06:03:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-13 06:03:38,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:38,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:38,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:03:38,349 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:38,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:38,350 INFO L82 PathProgramCache]: Analyzing trace with hash -504939809, now seen corresponding path program 1 times [2020-10-13 06:03:38,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:38,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871302967] [2020-10-13 06:03:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:38,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:38,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:38,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:41,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:41,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-13 06:03:41,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2766 [2020-10-13 06:03:41,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:03:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:41,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:41,573 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:03:41,729 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:03:41,937 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-13 06:03:42,159 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2020-10-13 06:03:42,381 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 44 [2020-10-13 06:03:42,587 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 40 [2020-10-13 06:03:42,759 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 39 [2020-10-13 06:03:42,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:42,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:42,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:42,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:42,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:42,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:42,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:42,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:42,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:42,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:42,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:42,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:42,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:42,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:42,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:42,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:42,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:03:42,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:42,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:03:42,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:42,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:42,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:42,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:03:42,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:43,080 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 06:03:43,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871302967] [2020-10-13 06:03:43,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:43,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:43,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640626478] [2020-10-13 06:03:43,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:43,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:43,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:43,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:43,083 INFO L87 Difference]: Start difference. First operand 506 states and 578 transitions. Second operand 13 states. [2020-10-13 06:03:43,638 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-10-13 06:03:43,796 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:03:43,971 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:03:44,426 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-13 06:03:44,899 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112 [2020-10-13 06:03:45,123 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 06:03:45,410 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-13 06:03:45,763 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2020-10-13 06:03:46,281 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2020-10-13 06:03:46,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:46,661 INFO L93 Difference]: Finished difference Result 1006 states and 1191 transitions. [2020-10-13 06:03:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:03:46,661 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2020-10-13 06:03:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:46,665 INFO L225 Difference]: With dead ends: 1006 [2020-10-13 06:03:46,665 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:03:46,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:03:46,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:03:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 544. [2020-10-13 06:03:46,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-13 06:03:46,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 623 transitions. [2020-10-13 06:03:46,709 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 623 transitions. Word has length 208 [2020-10-13 06:03:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:46,710 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 623 transitions. [2020-10-13 06:03:46,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 623 transitions. [2020-10-13 06:03:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-13 06:03:46,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:46,716 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:46,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:03:46,716 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:46,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:46,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1125806139, now seen corresponding path program 1 times [2020-10-13 06:03:46,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:46,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523914731] [2020-10-13 06:03:46,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:46,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:46,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:48,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-13 06:03:48,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:48,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1793 [2020-10-13 06:03:48,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:48,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:48,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:03:48,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:48,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:49,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:49,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:49,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:49,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:49,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:49,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:49,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:49,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:03:49,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:49,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:03:49,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:49,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:49,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:03:49,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,501 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 06:03:49,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523914731] [2020-10-13 06:03:49,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:49,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:49,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094075290] [2020-10-13 06:03:49,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:49,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:49,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:49,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:49,503 INFO L87 Difference]: Start difference. First operand 544 states and 623 transitions. Second operand 14 states. [2020-10-13 06:03:50,172 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-13 06:03:50,396 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-13 06:03:50,621 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:03:50,928 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-13 06:03:51,412 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 06:03:51,643 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 06:03:52,042 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-13 06:03:52,626 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 06:03:53,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:53,051 INFO L93 Difference]: Finished difference Result 1138 states and 1383 transitions. [2020-10-13 06:03:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 06:03:53,052 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 211 [2020-10-13 06:03:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:53,056 INFO L225 Difference]: With dead ends: 1138 [2020-10-13 06:03:53,057 INFO L226 Difference]: Without dead ends: 626 [2020-10-13 06:03:53,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:03:53,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-13 06:03:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 587. [2020-10-13 06:03:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-13 06:03:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 673 transitions. [2020-10-13 06:03:53,080 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 673 transitions. Word has length 211 [2020-10-13 06:03:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:53,081 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 673 transitions. [2020-10-13 06:03:53,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 673 transitions. [2020-10-13 06:03:53,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-13 06:03:53,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:53,084 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:53,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:03:53,085 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:53,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:53,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1272482308, now seen corresponding path program 1 times [2020-10-13 06:03:53,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:53,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064240553] [2020-10-13 06:03:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-13 06:03:57,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4309 [2020-10-13 06:03:57,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:03:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:57,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:57,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:57,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:03:57,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:57,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:57,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:03:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:03:57,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:57,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:03:57,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:58,078 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 06:03:58,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064240553] [2020-10-13 06:03:58,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:58,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:58,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580598355] [2020-10-13 06:03:58,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:58,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:58,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:58,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:58,080 INFO L87 Difference]: Start difference. First operand 587 states and 673 transitions. Second operand 13 states. [2020-10-13 06:04:00,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:00,008 INFO L93 Difference]: Finished difference Result 1201 states and 1427 transitions. [2020-10-13 06:04:00,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:04:00,009 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 221 [2020-10-13 06:04:00,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:00,013 INFO L225 Difference]: With dead ends: 1201 [2020-10-13 06:04:00,013 INFO L226 Difference]: Without dead ends: 680 [2020-10-13 06:04:00,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:04:00,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-13 06:04:00,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 595. [2020-10-13 06:04:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-10-13 06:04:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 684 transitions. [2020-10-13 06:04:00,042 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 684 transitions. Word has length 221 [2020-10-13 06:04:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:00,043 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 684 transitions. [2020-10-13 06:04:00,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:00,043 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 684 transitions. [2020-10-13 06:04:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-13 06:04:00,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:00,046 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:00,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:04:00,046 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:00,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:00,047 INFO L82 PathProgramCache]: Analyzing trace with hash 547442844, now seen corresponding path program 1 times [2020-10-13 06:04:00,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:00,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201357133] [2020-10-13 06:04:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:00,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:00,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-13 06:04:02,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:02,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2432 [2020-10-13 06:04:02,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:04:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:02,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:03,011 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:04:03,170 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:04:03,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:03,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:03,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:03,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:03,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:03,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:03,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:03,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:03,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:04:03,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:03,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:03,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:03,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:04:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:04:03,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:04:03,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:04:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:03,907 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 06:04:03,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201357133] [2020-10-13 06:04:03,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:03,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:03,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370993975] [2020-10-13 06:04:03,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:03,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:03,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:03,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:03,910 INFO L87 Difference]: Start difference. First operand 595 states and 684 transitions. Second operand 13 states. [2020-10-13 06:04:04,247 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:04:04,415 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:04:04,778 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:04:05,075 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:04:05,246 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:04:05,604 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:04:05,975 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2020-10-13 06:04:06,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:06,288 INFO L93 Difference]: Finished difference Result 1187 states and 1410 transitions. [2020-10-13 06:04:06,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:04:06,292 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 233 [2020-10-13 06:04:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:06,296 INFO L225 Difference]: With dead ends: 1187 [2020-10-13 06:04:06,296 INFO L226 Difference]: Without dead ends: 641 [2020-10-13 06:04:06,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:06,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-10-13 06:04:06,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 595. [2020-10-13 06:04:06,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-10-13 06:04:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 683 transitions. [2020-10-13 06:04:06,318 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 683 transitions. Word has length 233 [2020-10-13 06:04:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:06,319 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 683 transitions. [2020-10-13 06:04:06,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 683 transitions. [2020-10-13 06:04:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-13 06:04:06,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:06,322 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:06,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:04:06,322 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:06,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:06,323 INFO L82 PathProgramCache]: Analyzing trace with hash 619725159, now seen corresponding path program 1 times [2020-10-13 06:04:06,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:06,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994481316] [2020-10-13 06:04:06,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:06,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:06,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:06,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-13 06:04:09,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:09,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2704 [2020-10-13 06:04:09,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:04:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:04:09,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,533 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:04:09,723 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:04:09,976 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 50 [2020-10-13 06:04:10,187 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 46 [2020-10-13 06:04:10,378 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 42 [2020-10-13 06:04:10,557 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 38 [2020-10-13 06:04:10,734 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 33 [2020-10-13 06:04:10,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:10,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:10,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:10,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:10,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:10,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:10,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:04:10,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:04:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:11,057 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 06:04:11,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994481316] [2020-10-13 06:04:11,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:11,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:11,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937245196] [2020-10-13 06:04:11,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:11,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:11,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:11,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:11,059 INFO L87 Difference]: Start difference. First operand 595 states and 683 transitions. Second operand 13 states. [2020-10-13 06:04:11,590 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-10-13 06:04:11,737 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:04:11,907 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:04:12,231 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-13 06:04:12,571 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-10-13 06:04:13,241 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-13 06:04:13,580 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 104 [2020-10-13 06:04:13,940 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 99 [2020-10-13 06:04:14,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:14,352 INFO L93 Difference]: Finished difference Result 1188 states and 1413 transitions. [2020-10-13 06:04:14,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:14,356 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 245 [2020-10-13 06:04:14,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:14,359 INFO L225 Difference]: With dead ends: 1188 [2020-10-13 06:04:14,359 INFO L226 Difference]: Without dead ends: 612 [2020-10-13 06:04:14,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:04:14,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-10-13 06:04:14,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 610. [2020-10-13 06:04:14,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-10-13 06:04:14,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 699 transitions. [2020-10-13 06:04:14,381 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 699 transitions. Word has length 245 [2020-10-13 06:04:14,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:14,382 INFO L479 AbstractCegarLoop]: Abstraction has 610 states and 699 transitions. [2020-10-13 06:04:14,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:14,382 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 699 transitions. [2020-10-13 06:04:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-13 06:04:14,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:14,385 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:14,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:04:14,386 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:14,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:14,386 INFO L82 PathProgramCache]: Analyzing trace with hash 708329638, now seen corresponding path program 1 times [2020-10-13 06:04:14,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:14,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818799417] [2020-10-13 06:04:14,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-13 06:04:16,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:16,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2154 [2020-10-13 06:04:16,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:04:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:04:16,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:16,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:16,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:16,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:16,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:04:16,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:16,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:16,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:04:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:16,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:04:16,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:16,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:04:16,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:16,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:16,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:16,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:16,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:16,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:04:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:17,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:04:17,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:17,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 06:04:17,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:17,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:17,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:04:17,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:17,276 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:04:17,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818799417] [2020-10-13 06:04:17,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:17,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:17,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023437863] [2020-10-13 06:04:17,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:17,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:17,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:17,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:17,278 INFO L87 Difference]: Start difference. First operand 610 states and 699 transitions. Second operand 5 states. [2020-10-13 06:04:18,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:18,275 INFO L93 Difference]: Finished difference Result 1240 states and 1478 transitions. [2020-10-13 06:04:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:18,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 247 [2020-10-13 06:04:18,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:18,278 INFO L225 Difference]: With dead ends: 1240 [2020-10-13 06:04:18,278 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:04:18,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:18,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:04:18,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:04:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:04:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 301 transitions. [2020-10-13 06:04:18,293 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 301 transitions. Word has length 247 [2020-10-13 06:04:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:18,293 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 301 transitions. [2020-10-13 06:04:18,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:18,293 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 301 transitions. [2020-10-13 06:04:18,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-13 06:04:18,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:18,295 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:18,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:04:18,296 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:18,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:18,296 INFO L82 PathProgramCache]: Analyzing trace with hash 880730018, now seen corresponding path program 1 times [2020-10-13 06:04:18,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:18,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438279921] [2020-10-13 06:04:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:18,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:18,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:18,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:18,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:18,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:20,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:22,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:22,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-13 06:04:22,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:04:22,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4537 [2020-10-13 06:04:22,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:04:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:04:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:23,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:23,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:23,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:23,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:23,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:23,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:23,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:23,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:04:23,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,470 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 06:04:23,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438279921] [2020-10-13 06:04:23,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:23,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:23,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100366118] [2020-10-13 06:04:23,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:23,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:23,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:23,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:23,472 INFO L87 Difference]: Start difference. First operand 271 states and 301 transitions. Second operand 13 states. [2020-10-13 06:04:24,237 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:04:24,462 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:04:24,676 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:04:25,039 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:04:25,361 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:04:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:25,762 INFO L93 Difference]: Finished difference Result 551 states and 643 transitions. [2020-10-13 06:04:25,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:25,763 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 258 [2020-10-13 06:04:25,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:25,765 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:04:25,765 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:04:25,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:25,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:04:25,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:04:25,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:04:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 382 transitions. [2020-10-13 06:04:25,778 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 382 transitions. Word has length 258 [2020-10-13 06:04:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:25,778 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 382 transitions. [2020-10-13 06:04:25,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 382 transitions. [2020-10-13 06:04:25,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-13 06:04:25,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:25,781 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:25,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:04:25,781 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:25,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:25,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1235119599, now seen corresponding path program 1 times [2020-10-13 06:04:25,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:25,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772996823] [2020-10-13 06:04:25,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:25,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:26,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-13 06:04:26,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:26,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-13 06:04:26,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:26,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:26,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:04:26,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:04:26,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:26,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:26,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:26,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:26,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:26,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:26,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:26,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:04:26,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:26,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:26,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:26,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:26,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:26,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:26,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:26,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:26,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:26,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:26,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:26,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:26,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:26,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:26,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:26,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:26,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:26,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:26,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:26,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:26,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:26,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:04:26,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:26,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:26,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:04:26,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:04:26,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772996823] [2020-10-13 06:04:26,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:26,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:26,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900236920] [2020-10-13 06:04:26,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:26,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:26,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:26,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:26,454 INFO L87 Difference]: Start difference. First operand 346 states and 382 transitions. Second operand 5 states. [2020-10-13 06:04:27,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:27,240 INFO L93 Difference]: Finished difference Result 708 states and 814 transitions. [2020-10-13 06:04:27,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:27,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-10-13 06:04:27,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:27,243 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:04:27,243 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:04:27,244 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 06:04:27,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:04:27,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:04:27,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:04:27,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 380 transitions. [2020-10-13 06:04:27,254 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 380 transitions. Word has length 270 [2020-10-13 06:04:27,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:27,255 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 380 transitions. [2020-10-13 06:04:27,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:27,255 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 380 transitions. [2020-10-13 06:04:27,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-13 06:04:27,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:27,257 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:27,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:04:27,258 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:27,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:27,258 INFO L82 PathProgramCache]: Analyzing trace with hash -421646645, now seen corresponding path program 1 times [2020-10-13 06:04:27,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:27,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611030012] [2020-10-13 06:04:27,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-13 06:04:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1191 [2020-10-13 06:04:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:04:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:04:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,892 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-13 06:04:29,019 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-10-13 06:04:29,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:29,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:29,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:29,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:04:29,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:29,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:29,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:29,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:29,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:29,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:29,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:29,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:29,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:04:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:04:29,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611030012] [2020-10-13 06:04:29,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:29,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:29,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058060883] [2020-10-13 06:04:29,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:29,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:29,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:29,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:29,743 INFO L87 Difference]: Start difference. First operand 346 states and 380 transitions. Second operand 13 states. [2020-10-13 06:04:30,317 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:04:30,665 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-13 06:04:30,972 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-10-13 06:04:31,296 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2020-10-13 06:04:31,546 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2020-10-13 06:04:31,895 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2020-10-13 06:04:32,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:32,169 INFO L93 Difference]: Finished difference Result 698 states and 799 transitions. [2020-10-13 06:04:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:32,170 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 273 [2020-10-13 06:04:32,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:32,173 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:04:32,173 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:04:32,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:32,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:04:32,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:04:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:04:32,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 459 transitions. [2020-10-13 06:04:32,186 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 459 transitions. Word has length 273 [2020-10-13 06:04:32,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:32,186 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 459 transitions. [2020-10-13 06:04:32,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 459 transitions. [2020-10-13 06:04:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-13 06:04:32,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:32,189 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:32,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:04:32,190 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:32,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:32,190 INFO L82 PathProgramCache]: Analyzing trace with hash 391550031, now seen corresponding path program 1 times [2020-10-13 06:04:32,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:32,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899190855] [2020-10-13 06:04:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:32,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:32,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-13 06:04:32,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-10-13 06:04:32,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:04:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:04:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:33,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:33,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:33,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:33,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:33,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:33,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:33,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:33,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:33,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:33,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:33,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:33,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:33,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:33,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:33,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:33,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:33,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:33,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:33,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:33,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:33,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:33,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:04:33,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:33,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:33,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:04:33,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,307 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 06:04:33,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899190855] [2020-10-13 06:04:33,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:33,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:33,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923578221] [2020-10-13 06:04:33,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:33,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:33,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:33,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:33,308 INFO L87 Difference]: Start difference. First operand 418 states and 459 transitions. Second operand 5 states. [2020-10-13 06:04:34,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:34,191 INFO L93 Difference]: Finished difference Result 851 states and 967 transitions. [2020-10-13 06:04:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:34,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 275 [2020-10-13 06:04:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:34,194 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:04:34,194 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:04:34,195 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 06:04:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:04:34,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:04:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:04:34,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 457 transitions. [2020-10-13 06:04:34,206 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 457 transitions. Word has length 275 [2020-10-13 06:04:34,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:34,206 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 457 transitions. [2020-10-13 06:04:34,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 457 transitions. [2020-10-13 06:04:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-13 06:04:34,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:34,209 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:34,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:04:34,209 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:34,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:34,210 INFO L82 PathProgramCache]: Analyzing trace with hash -850650456, now seen corresponding path program 1 times [2020-10-13 06:04:34,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:34,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753543251] [2020-10-13 06:04:34,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-13 06:04:34,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-13 06:04:34,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:04:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:04:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:34,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:34,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:34,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:34,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:34,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:34,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:34,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:34,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:34,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:34,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:04:34,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:34,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:34,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:04:34,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:35,124 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 06:04:35,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753543251] [2020-10-13 06:04:35,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:35,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:04:35,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091617413] [2020-10-13 06:04:35,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:04:35,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:35,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:04:35,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:35,126 INFO L87 Difference]: Start difference. First operand 418 states and 457 transitions. Second operand 6 states. [2020-10-13 06:04:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:35,925 INFO L93 Difference]: Finished difference Result 849 states and 960 transitions. [2020-10-13 06:04:35,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:35,934 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 293 [2020-10-13 06:04:35,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:35,936 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:04:35,936 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:04:35,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:04:35,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:04:35,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:04:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:04:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 455 transitions. [2020-10-13 06:04:35,950 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 455 transitions. Word has length 293 [2020-10-13 06:04:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:35,950 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 455 transitions. [2020-10-13 06:04:35,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:04:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 455 transitions. [2020-10-13 06:04:35,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-13 06:04:35,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:35,953 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:35,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:04:35,954 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:35,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:35,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1645442843, now seen corresponding path program 1 times [2020-10-13 06:04:35,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:35,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27528968] [2020-10-13 06:04:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:36,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-13 06:04:36,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:36,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-13 06:04:36,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:04:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:04:36,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:36,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:36,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:36,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:36,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:36,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:36,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:36,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:36,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:36,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:36,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:36,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:36,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:36,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:36,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:36,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:36,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:36,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:36,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:36,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:36,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:36,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:36,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:36,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:36,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:36,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:04:36,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:04:36,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:04:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:36,999 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 06:04:37,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27528968] [2020-10-13 06:04:37,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:37,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:37,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159687070] [2020-10-13 06:04:37,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:37,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:37,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:37,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:37,002 INFO L87 Difference]: Start difference. First operand 418 states and 455 transitions. Second operand 5 states. [2020-10-13 06:04:37,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:37,841 INFO L93 Difference]: Finished difference Result 853 states and 959 transitions. [2020-10-13 06:04:37,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:37,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2020-10-13 06:04:37,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:37,845 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:04:37,845 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:04:37,846 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 06:04:37,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:04:37,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:04:37,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:04:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 453 transitions. [2020-10-13 06:04:37,856 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 453 transitions. Word has length 292 [2020-10-13 06:04:37,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:37,856 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 453 transitions. [2020-10-13 06:04:37,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:37,857 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 453 transitions. [2020-10-13 06:04:37,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-13 06:04:37,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:37,859 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:37,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:04:37,859 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:37,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:37,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1444023586, now seen corresponding path program 1 times [2020-10-13 06:04:37,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:37,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929967540] [2020-10-13 06:04:37,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:39,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:39,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-13 06:04:39,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:39,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1783 [2020-10-13 06:04:39,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:04:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:04:39,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,062 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:04:40,209 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:04:40,338 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 39 [2020-10-13 06:04:40,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:40,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:40,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:40,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:40,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:40,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:40,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:40,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:40,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:40,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:40,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:40,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:40,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:40,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:04:40,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:04:40,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:40,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:04:40,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:41,026 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:04:41,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929967540] [2020-10-13 06:04:41,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:41,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:41,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132682940] [2020-10-13 06:04:41,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:41,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:41,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:41,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:41,028 INFO L87 Difference]: Start difference. First operand 418 states and 453 transitions. Second operand 13 states. [2020-10-13 06:04:41,686 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:04:42,009 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:04:42,451 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:04:42,805 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:04:43,168 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:04:43,538 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:04:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:43,870 INFO L93 Difference]: Finished difference Result 835 states and 935 transitions. [2020-10-13 06:04:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:43,871 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 302 [2020-10-13 06:04:43,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:43,873 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:04:43,874 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:04:43,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:04:43,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:04:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:04:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 528 transitions. [2020-10-13 06:04:43,886 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 528 transitions. Word has length 302 [2020-10-13 06:04:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:43,887 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 528 transitions. [2020-10-13 06:04:43,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 528 transitions. [2020-10-13 06:04:43,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-13 06:04:43,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:43,890 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:43,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:04:43,890 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:43,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:43,891 INFO L82 PathProgramCache]: Analyzing trace with hash -375699561, now seen corresponding path program 1 times [2020-10-13 06:04:43,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:43,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677848405] [2020-10-13 06:04:43,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:43,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:44,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-13 06:04:44,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:44,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-13 06:04:44,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:44,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:04:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:04:44,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:44,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:44,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:44,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:44,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:44,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:44,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:44,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:44,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:44,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:44,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:44,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:44,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:44,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:44,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:44,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:44,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:44,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:44,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:44,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:44,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:44,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:44,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:44,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:44,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:44,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:44,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:44,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:44,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:44,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:44,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:44,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:44,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:44,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:44,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:44,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:04:44,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:04:44,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677848405] [2020-10-13 06:04:44,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:44,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:44,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784654502] [2020-10-13 06:04:44,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:44,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:44,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:44,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:44,896 INFO L87 Difference]: Start difference. First operand 483 states and 528 transitions. Second operand 5 states. [2020-10-13 06:04:45,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:45,683 INFO L93 Difference]: Finished difference Result 984 states and 1106 transitions. [2020-10-13 06:04:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:45,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 311 [2020-10-13 06:04:45,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:45,687 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:04:45,687 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:04:45,689 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 06:04:45,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:04:45,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:04:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:04:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 526 transitions. [2020-10-13 06:04:45,701 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 526 transitions. Word has length 311 [2020-10-13 06:04:45,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:45,701 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 526 transitions. [2020-10-13 06:04:45,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 526 transitions. [2020-10-13 06:04:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-13 06:04:45,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:45,705 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:45,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:04:45,705 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:45,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:45,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1473741510, now seen corresponding path program 1 times [2020-10-13 06:04:45,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:45,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953047964] [2020-10-13 06:04:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:45,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:45,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-13 06:04:46,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:46,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-10-13 06:04:46,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:46,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:04:46,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:04:46,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:46,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:46,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:46,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:46,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:46,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:46,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:46,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:46,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:46,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:46,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:46,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:46,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:46,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:46,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:04:46,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:04:46,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:46,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:04:46,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,879 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 06:04:46,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953047964] [2020-10-13 06:04:46,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:46,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:46,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351947109] [2020-10-13 06:04:46,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:46,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:46,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:46,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:46,881 INFO L87 Difference]: Start difference. First operand 483 states and 526 transitions. Second operand 7 states. [2020-10-13 06:04:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:47,788 INFO L93 Difference]: Finished difference Result 978 states and 1095 transitions. [2020-10-13 06:04:47,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:47,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 316 [2020-10-13 06:04:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:47,794 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:04:47,794 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:04:47,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:04:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:04:47,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:04:47,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:04:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 524 transitions. [2020-10-13 06:04:47,807 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 524 transitions. Word has length 316 [2020-10-13 06:04:47,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:47,808 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 524 transitions. [2020-10-13 06:04:47,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:47,808 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 524 transitions. [2020-10-13 06:04:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-13 06:04:47,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:47,811 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:47,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:04:47,811 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:47,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:47,811 INFO L82 PathProgramCache]: Analyzing trace with hash 262838406, now seen corresponding path program 1 times [2020-10-13 06:04:47,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:47,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387951206] [2020-10-13 06:04:47,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:47,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:48,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:48,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:50,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:50,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-13 06:04:50,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2165 [2020-10-13 06:04:50,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:04:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:04:50,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:50,400 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:04:50,536 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:04:50,670 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-13 06:04:51,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:51,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:51,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:51,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:51,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:51,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:51,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:51,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:51,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:51,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:51,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:51,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:51,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:51,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:51,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:51,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:51,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:51,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:51,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:51,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:51,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:51,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:51,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:51,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:51,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:51,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:51,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:51,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:51,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:51,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:51,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:51,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:51,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:51,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:51,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:51,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:51,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:51,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:51,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:51,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:04:51,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:04:51,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:04:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:04:51,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387951206] [2020-10-13 06:04:51,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:51,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:51,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472495193] [2020-10-13 06:04:51,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:51,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:51,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:51,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:51,414 INFO L87 Difference]: Start difference. First operand 483 states and 524 transitions. Second operand 13 states. [2020-10-13 06:04:52,117 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:04:52,512 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:04:52,838 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:04:53,187 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:04:53,461 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:04:53,914 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:04:54,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:54,305 INFO L93 Difference]: Finished difference Result 962 states and 1070 transitions. [2020-10-13 06:04:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:54,306 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 322 [2020-10-13 06:04:54,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:54,308 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:04:54,308 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:04:54,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:04:54,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:04:54,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:04:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:04:54,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 588 transitions. [2020-10-13 06:04:54,321 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 588 transitions. Word has length 322 [2020-10-13 06:04:54,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:54,322 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 588 transitions. [2020-10-13 06:04:54,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:54,322 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 588 transitions. [2020-10-13 06:04:54,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-13 06:04:54,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:54,325 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:54,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:04:54,325 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:54,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:54,326 INFO L82 PathProgramCache]: Analyzing trace with hash -104148317, now seen corresponding path program 1 times [2020-10-13 06:04:54,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:54,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650107618] [2020-10-13 06:04:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:55,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-13 06:04:55,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:55,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-10-13 06:04:55,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:55,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:55,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:04:55,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:04:55,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:55,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:55,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:55,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:55,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:55,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:55,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:55,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:55,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:55,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:55,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:55,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:55,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:55,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:55,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:55,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:55,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:55,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:55,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:55,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:55,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:55,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:55,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:55,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:55,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:55,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:55,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:55,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:55,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:55,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:55,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:55,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:55,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:55,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:55,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:55,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:55,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:55,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:55,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:55,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:04:55,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:55,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:55,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:55,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:04:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:55,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:55,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:55,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:04:55,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:55,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:04:55,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:55,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:55,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:55,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:04:55,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:55,638 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 06:04:55,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650107618] [2020-10-13 06:04:55,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:55,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:55,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107629230] [2020-10-13 06:04:55,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:55,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:55,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:55,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:55,639 INFO L87 Difference]: Start difference. First operand 539 states and 588 transitions. Second operand 5 states. [2020-10-13 06:04:56,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:56,436 INFO L93 Difference]: Finished difference Result 1088 states and 1218 transitions. [2020-10-13 06:04:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:56,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-10-13 06:04:56,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:56,440 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:04:56,440 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:04:56,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:56,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:04:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:04:56,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:04:56,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 586 transitions. [2020-10-13 06:04:56,453 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 586 transitions. Word has length 327 [2020-10-13 06:04:56,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:56,454 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 586 transitions. [2020-10-13 06:04:56,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:56,454 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 586 transitions. [2020-10-13 06:04:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-13 06:04:56,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:56,457 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:56,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:04:56,457 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:56,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:56,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1269248321, now seen corresponding path program 1 times [2020-10-13 06:04:56,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:56,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336616928] [2020-10-13 06:04:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:56,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:56,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:57,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:57,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-13 06:04:57,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-10-13 06:04:57,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:04:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:04:57,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:57,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:57,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:57,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:57,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:57,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:57,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:57,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:57,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:57,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:57,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:57,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:57,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:57,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:57,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:57,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:57,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:57,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:57,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:57,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:57,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:57,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:57,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:57,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:57,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:57,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:57,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:57,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:57,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:57,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:57,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:57,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:57,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:57,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:57,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:57,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:57,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:57,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:04:57,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:57,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:04:57,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:04:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:57,612 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 06:04:57,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336616928] [2020-10-13 06:04:57,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:57,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:57,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990969559] [2020-10-13 06:04:57,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:57,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:57,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:57,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:57,613 INFO L87 Difference]: Start difference. First operand 539 states and 586 transitions. Second operand 5 states. [2020-10-13 06:04:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:58,481 INFO L93 Difference]: Finished difference Result 1097 states and 1221 transitions. [2020-10-13 06:04:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:58,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-10-13 06:04:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:58,489 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:04:58,489 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:04:58,490 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 06:04:58,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:04:58,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:04:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:04:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 525 transitions. [2020-10-13 06:04:58,506 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 525 transitions. Word has length 331 [2020-10-13 06:04:58,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:58,507 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 525 transitions. [2020-10-13 06:04:58,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:58,507 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 525 transitions. [2020-10-13 06:04:58,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-13 06:04:58,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:58,511 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:58,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:04:58,512 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:58,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:58,512 INFO L82 PathProgramCache]: Analyzing trace with hash 685942495, now seen corresponding path program 1 times [2020-10-13 06:04:58,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:58,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969735916] [2020-10-13 06:04:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:58,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:58,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:58,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:01,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-13 06:05:01,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2541 [2020-10-13 06:05:01,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:05:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:05:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:01,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:01,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:01,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:01,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:01,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:01,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:01,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:01,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:01,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:01,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:01,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:01,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:01,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:01,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:01,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:01,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:01,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:01,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:01,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:01,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:01,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:01,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:01,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:01,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:01,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:01,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:01,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:01,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:01,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:01,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:01,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:01,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:01,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:01,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:01,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:01,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:05:01,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:01,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:01,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:01,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:01,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:05:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:01,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:05:01,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:01,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:01,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:05:01,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:01,909 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:05:01,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969735916] [2020-10-13 06:05:01,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:01,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:01,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382433866] [2020-10-13 06:05:01,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:01,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:01,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:01,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:01,911 INFO L87 Difference]: Start difference. First operand 481 states and 525 transitions. Second operand 13 states. [2020-10-13 06:05:02,782 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-13 06:05:03,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:03,466 INFO L93 Difference]: Finished difference Result 969 states and 1087 transitions. [2020-10-13 06:05:03,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:03,467 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 340 [2020-10-13 06:05:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:03,470 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:05:03,470 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:05:03,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:05:03,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:05:03,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:05:03,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:05:03,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 528 transitions. [2020-10-13 06:05:03,479 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 528 transitions. Word has length 340 [2020-10-13 06:05:03,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:03,479 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 528 transitions. [2020-10-13 06:05:03,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:03,479 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 528 transitions. [2020-10-13 06:05:03,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-13 06:05:03,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:03,482 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:03,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:05:03,482 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:03,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:03,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1975979572, now seen corresponding path program 1 times [2020-10-13 06:05:03,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:03,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828766579] [2020-10-13 06:05:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:03,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:03,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 361 [2020-10-13 06:05:04,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:04,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 595 [2020-10-13 06:05:04,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:05:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:05:04,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:04,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:04,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:04,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:04,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:04,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:04,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:04,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:04,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:04,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:04,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:05:04,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 06:05:04,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:05:04,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,626 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 06:05:04,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828766579] [2020-10-13 06:05:04,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:04,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:04,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373123627] [2020-10-13 06:05:04,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:04,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:04,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:04,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:04,628 INFO L87 Difference]: Start difference. First operand 483 states and 528 transitions. Second operand 7 states. [2020-10-13 06:05:05,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:05,588 INFO L93 Difference]: Finished difference Result 980 states and 1101 transitions. [2020-10-13 06:05:05,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:05,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 343 [2020-10-13 06:05:05,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:05,592 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:05:05,592 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:05:05,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:05:05,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:05:05,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:05:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:05:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 526 transitions. [2020-10-13 06:05:05,605 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 526 transitions. Word has length 343 [2020-10-13 06:05:05,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:05,606 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 526 transitions. [2020-10-13 06:05:05,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:05,606 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 526 transitions. [2020-10-13 06:05:05,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-13 06:05:05,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:05,609 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:05,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:05:05,609 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:05,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:05,610 INFO L82 PathProgramCache]: Analyzing trace with hash -719033481, now seen corresponding path program 1 times [2020-10-13 06:05:05,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:05,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321683433] [2020-10-13 06:05:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:05,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:05,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:06,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:06,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:08,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:08,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-13 06:05:08,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2505 [2020-10-13 06:05:08,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:05:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:05:08,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:08,545 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:05:08,676 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:05:09,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:09,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:09,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:09,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:09,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:09,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:09,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:09,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:09,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:09,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:09,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:09,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:09,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:09,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:09,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:09,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:09,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:09,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:05:09,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:05:09,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:09,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:09,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:09,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:05:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:05:09,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:09,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:05:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:05:09,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321683433] [2020-10-13 06:05:09,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:09,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:09,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929878505] [2020-10-13 06:05:09,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:09,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:09,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:09,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:09,438 INFO L87 Difference]: Start difference. First operand 483 states and 526 transitions. Second operand 13 states. [2020-10-13 06:05:10,173 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:05:10,542 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:05:10,869 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:05:11,216 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:05:11,490 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:05:11,798 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:05:12,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:12,095 INFO L93 Difference]: Finished difference Result 956 states and 1070 transitions. [2020-10-13 06:05:12,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:12,096 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 345 [2020-10-13 06:05:12,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:12,098 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:05:12,099 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:05:12,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:05:12,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:05:12,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:05:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:05:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 590 transitions. [2020-10-13 06:05:12,112 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 590 transitions. Word has length 345 [2020-10-13 06:05:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:12,112 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 590 transitions. [2020-10-13 06:05:12,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:12,112 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 590 transitions. [2020-10-13 06:05:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-13 06:05:12,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:12,115 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:12,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:05:12,115 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:12,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1188743019, now seen corresponding path program 1 times [2020-10-13 06:05:12,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:12,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974110554] [2020-10-13 06:05:12,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-13 06:05:14,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1975 [2020-10-13 06:05:14,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:05:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:05:14,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:14,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:14,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:14,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:14,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:14,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:14,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:14,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:14,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:14,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:05:14,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:05:14,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:14,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:05:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:14,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:14,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:14,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:05:14,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:14,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:05:14,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:05:14,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:14,584 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 06:05:14,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974110554] [2020-10-13 06:05:14,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:14,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:14,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667108644] [2020-10-13 06:05:14,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:14,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:14,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:14,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:14,586 INFO L87 Difference]: Start difference. First operand 537 states and 590 transitions. Second operand 5 states. [2020-10-13 06:05:15,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:15,413 INFO L93 Difference]: Finished difference Result 1083 states and 1219 transitions. [2020-10-13 06:05:15,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:15,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 346 [2020-10-13 06:05:15,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:15,417 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:05:15,417 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:05:15,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:05:15,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:05:15,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:05:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 587 transitions. [2020-10-13 06:05:15,431 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 587 transitions. Word has length 346 [2020-10-13 06:05:15,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:15,432 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 587 transitions. [2020-10-13 06:05:15,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:15,432 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 587 transitions. [2020-10-13 06:05:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-13 06:05:15,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:15,435 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:15,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:05:15,435 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:15,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:15,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1372894864, now seen corresponding path program 1 times [2020-10-13 06:05:15,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:15,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324562437] [2020-10-13 06:05:15,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:15,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:15,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:15,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-13 06:05:16,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:16,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-10-13 06:05:16,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:05:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:05:16,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:16,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:16,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:16,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:16,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:16,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:16,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:16,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:16,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:16,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:05:16,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:16,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:16,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:16,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:05:16,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:16,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:16,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:16,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:16,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:16,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:16,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:16,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:16,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:16,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:16,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:16,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:16,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:05:16,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 06:05:16,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:05:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:05:16,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324562437] [2020-10-13 06:05:16,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:16,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:05:16,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968924468] [2020-10-13 06:05:16,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:05:16,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:16,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:05:16,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:16,986 INFO L87 Difference]: Start difference. First operand 537 states and 587 transitions. Second operand 6 states. [2020-10-13 06:05:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:17,830 INFO L93 Difference]: Finished difference Result 1085 states and 1214 transitions. [2020-10-13 06:05:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:17,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 345 [2020-10-13 06:05:17,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:17,834 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:05:17,834 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:05:17,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:05:17,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:05:17,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:05:17,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 561 transitions. [2020-10-13 06:05:17,846 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 561 transitions. Word has length 345 [2020-10-13 06:05:17,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:17,847 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 561 transitions. [2020-10-13 06:05:17,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:05:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 561 transitions. [2020-10-13 06:05:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-10-13 06:05:17,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:17,849 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:17,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:05:17,849 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:17,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:17,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1451604771, now seen corresponding path program 1 times [2020-10-13 06:05:17,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:17,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560558553] [2020-10-13 06:05:17,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:17,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 387 [2020-10-13 06:05:18,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-13 06:05:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:05:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:05:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:18,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:18,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:05:18,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:18,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:05:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:05:18,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:18,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:05:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:05:18,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:18,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:05:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:18,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:18,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:05:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:05:18,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:05:18,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:05:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:18,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:05:18,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:05:18,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:05:18,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:19,077 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 06:05:19,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560558553] [2020-10-13 06:05:19,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:19,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:19,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108477454] [2020-10-13 06:05:19,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:19,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:19,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:19,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:19,079 INFO L87 Difference]: Start difference. First operand 514 states and 561 transitions. Second operand 5 states. [2020-10-13 06:05:19,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:19,626 INFO L93 Difference]: Finished difference Result 897 states and 991 transitions. [2020-10-13 06:05:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:19,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 367 [2020-10-13 06:05:19,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:19,628 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:05:19,628 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:05:19,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:19,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:05:19,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:05:19,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:05:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:05:19,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 367 [2020-10-13 06:05:19,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:19,631 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:05:19,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:19,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:05:19,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:05:19,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:05:19,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:05:20,415 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2020-10-13 06:05:26,638 WARN L193 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 372 DAG size of output: 272 [2020-10-13 06:05:29,394 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 201 DAG size of output: 167 [2020-10-13 06:05:31,471 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 170 DAG size of output: 136 [2020-10-13 06:05:31,477 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:05:31,478 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 06:05:31,478 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:05:31,478 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:05:31,478 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:05:31,478 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,478 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,478 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:05:31,479 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:05:31,480 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:05:31,480 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:05:31,480 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:05:31,480 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:05:31,480 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,480 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,480 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,480 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:05:31,481 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 551) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,482 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:05:31,483 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:05:31,484 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:05:31,485 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:05:31,486 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,487 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:05:31,488 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,489 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:05:31,490 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,491 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,491 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,491 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,491 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,491 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:05:31,491 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:05:31,491 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:05:31,492 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:05:31,492 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:05:31,492 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:05:31,492 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:05:31,492 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:05:31,492 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:05:31,492 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse37 (= |old(~a21~0)| 1)) (.cse74 (= ~a7~0 0)) (.cse63 (not (= |calculate_output_#in~input| 3))) (.cse64 (not (= |calculate_output_#in~input| 2))) (.cse65 (not (= |calculate_output_#in~input| 4))) (.cse66 (not (= |calculate_output_#in~input| 5))) (.cse68 (not (= |calculate_output_#in~input| 6))) (.cse42 (= |old(~a20~0)| 1)) (.cse56 (= |old(~a17~0)| 1)) (.cse17 (<= ~a16~0 4)) (.cse28 (= ~a8~0 |old(~a8~0)|)) (.cse18 (<= 4 ~a16~0)) (.cse51 (= ~a21~0 1)) (.cse52 (= ~a8~0 15)) (.cse67 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse46 (= |old(~a7~0)| 1)) (.cse27 (= ~a16~0 |old(~a16~0)|)) (.cse19 (<= ~a21~0 1)) (.cse20 (<= 1 ~a21~0)) (.cse21 (<= ~a8~0 15)) (.cse22 (<= 15 ~a8~0)) (.cse4 (not (<= |old(~a7~0)| 0))) (.cse47 (= ~a7~0 |old(~a7~0)|)) (.cse15 (= ~a17~0 |old(~a17~0)|)) (.cse48 (= ~a21~0 |old(~a21~0)|)) (.cse16 (= ~a20~0 |old(~a20~0)|)) (.cse49 (= ~a8~0 13)) (.cse50 (= ~a16~0 4))) (let ((.cse9 (not (<= |old(~a20~0)| 0))) (.cse35 (and .cse47 .cse15 .cse48 .cse16 .cse49 .cse50)) (.cse58 (not (= 0 |old(~a20~0)|))) (.cse53 (and .cse4 (not (<= 2 |old(~a7~0)|)))) (.cse25 (not (<= 5 |old(~a16~0)|))) (.cse11 (not (<= |old(~a8~0)| 15))) (.cse29 (not (<= |old(~a16~0)| 5))) (.cse12 (not (<= 15 |old(~a8~0)|))) (.cse55 (and .cse47 .cse15 .cse16 .cse27 .cse19 .cse20 .cse21 .cse22)) (.cse34 (not .cse46)) (.cse43 (not (= 6 |old(~a16~0)|))) (.cse14 (<= 1 ~a7~0)) (.cse23 (<= ~a7~0 1)) (.cse24 (not (<= |old(~a7~0)| 1))) (.cse7 (not (<= 13 |old(~a8~0)|))) (.cse54 (not (<= |old(~a17~0)| 1))) (.cse13 (not (<= 1 |old(~a7~0)|))) (.cse5 (not (<= |old(~a8~0)| 13))) (.cse33 (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|))) .cse67)) (.cse69 (and .cse47 .cse15 .cse51 .cse16 .cse52 .cse50)) (.cse0 (not (<= 4 |old(~a16~0)|))) (.cse1 (and .cse47 .cse15 .cse16 .cse17 .cse28 .cse18 .cse19 .cse20)) (.cse26 (not (<= 14 |old(~a8~0)|))) (.cse2 (not (<= |old(~a21~0)| 1))) (.cse3 (not (<= 1 |old(~a21~0)|))) (.cse6 (not (<= |old(~a16~0)| 4))) (.cse30 (not (<= |old(~a8~0)| 14))) (.cse70 (not (<= 1 |old(~a20~0)|))) (.cse31 (not (<= |old(~a20~0)| 1))) (.cse61 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse39 (not (= 0 |old(~a17~0)|))) (.cse40 (not .cse56)) (.cse36 (not .cse42)) (.cse62 (= 5 ~a16~0)) (.cse57 (not (= 5 |old(~a16~0)|))) (.cse41 (and .cse63 .cse64 .cse65 (not (= |calculate_output_#in~input| 1)) .cse66 .cse68)) (.cse44 (not (= 15 |old(~a8~0)|))) (.cse32 (not (= |old(~a8~0)| 13))) (.cse71 (and .cse15 .cse51 .cse16 .cse49 .cse50 .cse74)) (.cse73 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse72 (not (= |old(~a7~0)| 0))) (.cse59 (= 14 ~a8~0)) (.cse60 (not (= 14 |old(~a8~0)|))) (.cse8 (not (<= |old(~a17~0)| 0))) (.cse75 (not (<= |old(~a17~0)| |old(~a20~0)|))) (.cse45 (not .cse37)) (.cse10 (not (= ~a12~0 8))) (.cse38 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (not (< 1 |old(~a7~0)|)) .cse4) .cse5 .cse6 .cse7 (and (not (< 1 |old(~a17~0)|)) .cse8) (and (not (< 1 |old(~a20~0)|)) .cse9) .cse10) (or .cse0 .cse11 .cse2 .cse12 .cse13 .cse3 (and .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23) .cse6 .cse24 .cse8 .cse10 .cse9) (or .cse25 .cse26 .cse2 (and .cse14 .cse15 .cse16 .cse27 .cse28 .cse19 .cse20 .cse23) .cse29 .cse13 .cse3 .cse24 .cse30 .cse8 .cse10 .cse31) (or .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse10 .cse38 .cse39) (or (and (or .cse32 .cse40 .cse34 .cse36 .cse41 .cse10 .cse38) (or .cse42 .cse43 .cse41 .cse44 .cse45 .cse10 .cse46 .cse39)) (and .cse16 .cse27 (or (and .cse47 .cse48 .cse49 .cse50 (= ~a17~0 1)) (and .cse47 .cse51 .cse52 (not (= ~a20~0 1)) (= ~a17~0 0))))) (or .cse53 .cse11 .cse2 .cse54 (not (< 0 |old(~a17~0)|)) (not (<= |old(~a16~0)| 6)) (not (< 5 |old(~a16~0)|)) .cse33 .cse12 .cse3 .cse55 .cse10 .cse9) (or .cse33 .cse43 (and .cse15 .cse47 .cse51 .cse16 (= ~a16~0 6) .cse52) .cse36 .cse56 .cse44 .cse45 .cse10 .cse46) (or .cse34 (and .cse47 .cse15 .cse51 .cse16 .cse27 .cse52) .cse8 .cse57 .cse44 .cse45 .cse10 .cse9) (or .cse32 .cse40 .cse33 .cse34 .cse35 .cse58 .cse37 .cse10 .cse38) (or (and .cse47 .cse15 .cse51 .cse16 .cse59 .cse50) .cse60 .cse61 .cse34 .cse58 .cse45 .cse10 .cse38) (or .cse42 (and .cse47 .cse15 .cse51 .cse16 .cse52 .cse62) .cse57 .cse41 .cse44 .cse45 .cse10 .cse46) (or .cse32 .cse33 (and .cse47 .cse15 .cse48 .cse16 .cse27 .cse49) .cse34 .cse43 .cse36 .cse37 .cse10 .cse39) (or .cse53 .cse25 .cse11 .cse2 .cse33 .cse29 .cse12 .cse3 .cse55 .cse8 .cse10) (or .cse40 .cse42 (and .cse63 .cse64 .cse65 .cse66 .cse67 .cse68) .cse69 .cse44 .cse45 .cse10 .cse38 .cse46) (or .cse33 .cse61 .cse69 .cse44 .cse45 .cse10 .cse38 .cse39) (or .cse32 .cse40 (not (= 0 |old(~a21~0)|)) (and .cse47 .cse15 .cse16 .cse49 (= ~a21~0 0) .cse62) .cse34 .cse36 .cse57 .cse41 .cse10) (or .cse32 (not (= |old(~a17~0)| |old(~a21~0)|)) .cse40 .cse4 .cse61 .cse43 (and .cse47 .cse15 (= ~a21~0 ~a17~0) .cse16 .cse27 .cse49) .cse10) (or .cse2 (not (<= 1 |old(~a17~0)|)) (and .cse14 .cse15 .cse16 .cse17 .cse28 .cse18 .cse19 .cse20 .cse23) .cse24 .cse6 .cse7 .cse54 .cse70 .cse31 .cse0 .cse13 .cse3 .cse5 .cse10) (or .cse33 .cse36 .cse69 .cse44 .cse45 .cse10 .cse38 .cse46 .cse39) (or .cse32 .cse40 .cse71 .cse36 .cse45 .cse10 .cse72 .cse38) (or .cse0 .cse1 .cse26 .cse4 .cse2 .cse3 .cse6 .cse30 .cse8 .cse70 .cse10 .cse31) (or .cse60 .cse73 .cse61 (and .cse15 .cse51 .cse16 .cse27 .cse28 (= ~a17~0 ~a7~0)) .cse57 .cse45 .cse10 .cse39) (or .cse40 .cse60 .cse36 (and .cse15 .cse51 .cse16 .cse59 .cse50 .cse74) .cse45 .cse10 .cse72 .cse38) (or (not (<= |old(~a20~0)| |old(~a17~0)|)) (and .cse47 .cse16 (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) .cse52 (<= ~a21~0 ~a20~0) .cse62 (<= ~a20~0 ~a21~0)) .cse4 (not (<= |old(~a21~0)| |old(~a20~0)|)) (not (<= |old(~a20~0)| |old(~a21~0)|)) .cse57 .cse41 .cse75 .cse44 .cse45 .cse10) (or .cse32 .cse71 .cse73 .cse45 .cse10 .cse72 .cse38) (or (not (<= |old(~a17~0)| |old(~a7~0)|)) (and .cse15 .cse51 .cse16 .cse59 (<= ~a17~0 ~a7~0) .cse50 (<= ~a7~0 ~a17~0)) (not (< |old(~a20~0)| (+ |old(~a17~0)| 1))) .cse60 (not (<= |old(~a7~0)| |old(~a17~0)|)) .cse8 .cse75 .cse45 .cse10 .cse38)))) [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:05:31,494 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,495 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:05:31,496 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:05:31,497 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:05:31,498 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:05:31,499 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:05:31,499 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= ~a16~0 5) (<= ~a20~0 ~a17~0) (= ~a12~0 8) (<= ~a17~0 ~a20~0) (<= ~a7~0 0) (<= ~a21~0 ~a20~0) (<= ~a20~0 1) (<= 5 ~a16~0) (<= ~a8~0 15) (<= ~a20~0 ~a21~0) (<= 15 ~a8~0)) [2020-10-13 06:05:31,499 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:05:31,499 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:05:31,499 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| |old(~a20~0)|)) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (not (<= |old(~a20~0)| |old(~a17~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a20~0)| |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a20~0 |old(~a20~0)|) (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 ~a20~0) (<= ~a8~0 15) (<= ~a20~0 ~a21~0) (<= 15 ~a8~0)) (not (= ~a12~0 8))) [2020-10-13 06:05:31,499 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:05:31,500 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse29 (= 5 main_~input~0)) (.cse30 (= 6 main_~input~0)) (.cse31 (= main_~input~0 4)) (.cse32 (= 3 main_~input~0)) (.cse33 (= 2 main_~input~0)) (.cse22 (= ~a7~0 1)) (.cse17 (= ~a21~0 1)) (.cse45 (<= ~a7~0 0))) (let ((.cse1 (<= 13 ~a8~0)) (.cse11 (<= ~a8~0 13)) (.cse38 (= ~a20~0 0)) (.cse3 (<= 1 ~a17~0)) (.cse36 (or (< 1 ~a7~0) .cse45)) (.cse6 (<= ~a17~0 1)) (.cse13 (<= ~a8~0 15)) (.cse14 (<= 15 ~a8~0)) (.cse20 (= ~a17~0 ~a7~0)) (.cse0 (<= 1 ~a7~0)) (.cse35 (<= ~a16~0 5)) (.cse37 (<= 5 ~a16~0)) (.cse10 (<= ~a7~0 1)) (.cse15 (<= ~a20~0 0)) (.cse16 (= ~a20~0 ~a17~0)) (.cse24 (not .cse17)) (.cse42 (= ~a16~0 6)) (.cse23 (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)))) (.cse28 (= ~a8~0 15)) (.cse44 (not .cse22)) (.cse21 (= ~a17~0 0)) (.cse46 (<= ~a17~0 ~a20~0)) (.cse18 (= 14 ~a8~0)) (.cse27 (= ~a16~0 4)) (.cse39 (= ~a7~0 0)) (.cse43 (or .cse29 .cse30 .cse31 .cse32 (= main_~input~0 1) .cse33)) (.cse25 (= ~a8~0 13)) (.cse26 (= ~a20~0 1)) (.cse19 (= 5 ~a16~0)) (.cse34 (= ~a17~0 1)) (.cse2 (<= 1 ~a20~0)) (.cse40 (<= 14 ~a8~0)) (.cse41 (<= ~a8~0 14)) (.cse4 (<= ~a16~0 4)) (.cse12 (<= ~a17~0 0)) (.cse5 (<= 4 ~a16~0)) (.cse7 (<= ~a21~0 1)) (.cse8 (<= ~a20~0 1)) (.cse9 (<= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse4 .cse12 .cse5 .cse7 .cse9 .cse13 .cse10 .cse14 .cse15) (and .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (and .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse21) (not (<= |old(~a21~0)| |old(~a20~0)|)) (and .cse17 (not .cse20) .cse28 (not (= ~a21~0 ~a20~0)) (or .cse29 .cse30 .cse31 .cse32 (= ~a17~0 main_~input~0) .cse33) .cse27 .cse34) (and .cse35 .cse23 .cse12 .cse36 .cse7 .cse9 .cse37 .cse13 .cse14) (and .cse1 .cse4 (or (< 1 ~a20~0) .cse15) .cse5 .cse36 .cse7 (or .cse12 (< 1 ~a17~0)) .cse9 .cse11) (not (<= 1 |old(~a20~0)|)) (and .cse38 .cse16 .cse17 .cse22 .cse18 .cse27) (not (<= |old(~a20~0)| |old(~a17~0)|)) (and .cse38 .cse22 .cse23 .cse24 .cse25 .cse27 .cse34) (not (<= |old(~a20~0)| |old(~a21~0)|)) (and (<= ~a16~0 6) .cse3 (<= 6 ~a16~0) .cse23 .cse36 .cse7 .cse6 .cse9 .cse13 .cse14 .cse15) (and .cse17 .cse25 .cse27 .cse20 .cse39) (not (= ~a12~0 8)) (and .cse0 .cse40 .cse41 .cse35 .cse12 .cse7 .cse8 .cse9 .cse37 .cse10) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse17 .cse22 .cse12 .cse28 .cse19 .cse15) (and .cse17 .cse42 .cse43 .cse28 .cse44 .cse21) (and (= ~a21~0 ~a17~0) .cse16 .cse42 .cse45 .cse25 .cse34) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a20~0 |old(~a20~0)|) .cse43 .cse46 .cse28 (<= ~a21~0 ~a20~0) .cse19 (<= ~a20~0 ~a21~0)) (and .cse17 .cse25 .cse26 .cse27 .cse39 .cse34) (and .cse17 .cse43 .cse28 .cse44 .cse19 (not .cse26)) (and .cse16 .cse17 .cse23 .cse28 .cse27 .cse21) (and .cse22 .cse42 .cse23 .cse24 .cse25 .cse26 .cse21) (not (<= |old(~a16~0)| 5)) (and .cse17 .cse42 (not .cse34) .cse23 .cse28 .cse26 .cse44) (not (<= 15 |old(~a8~0)|)) (and .cse17 .cse23 .cse28 .cse26 .cse27 .cse44 .cse21) (and .cse17 .cse18 .cse46 .cse12 (<= ~a17~0 ~a7~0) (< ~a20~0 (+ ~a17~0 1)) .cse27 (<= ~a7~0 ~a17~0)) (and .cse22 .cse43 .cse25 .cse26 .cse27 .cse34) (and .cse17 .cse18 .cse26 .cse27 .cse39 .cse34) (and .cse22 .cse43 .cse25 (= ~a21~0 0) .cse26 .cse19 .cse34) (and .cse2 .cse40 .cse41 .cse4 .cse12 .cse5 .cse45 .cse7 .cse8 .cse9)))) [2020-10-13 06:05:31,500 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:05:31,500 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:05:31,501 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse5 (= ~a21~0 1)) (.cse0 (= ~a7~0 1)) (.cse39 (<= ~a7~0 0))) (let ((.cse3 (= 5 ~a16~0)) (.cse19 (<= ~a20~0 0)) (.cse25 (or (< 1 ~a7~0) .cse39)) (.cse16 (<= ~a8~0 15)) (.cse18 (<= 15 ~a8~0)) (.cse22 (= ~a17~0 ~a7~0)) (.cse31 (<= ~a16~0 5)) (.cse32 (<= 5 ~a16~0)) (.cse27 (= ~a20~0 0)) (.cse10 (<= 1 ~a7~0)) (.cse24 (<= 13 ~a8~0)) (.cse29 (<= 1 ~a17~0)) (.cse30 (<= ~a17~0 1)) (.cse17 (<= ~a7~0 1)) (.cse26 (<= ~a8~0 13)) (.cse20 (= ~a20~0 ~a17~0)) (.cse6 (= ~a16~0 6)) (.cse7 (= ~a8~0 15)) (.cse8 (not .cse0)) (.cse37 (not .cse5)) (.cse1 (= ~a8~0 13)) (.cse9 (= ~a17~0 0)) (.cse23 (<= ~a17~0 ~a20~0)) (.cse21 (= 14 ~a8~0)) (.cse2 (= ~a20~0 1)) (.cse28 (= ~a16~0 4)) (.cse33 (= ~a7~0 0)) (.cse4 (= ~a17~0 1)) (.cse38 (<= 1 ~a20~0)) (.cse34 (<= 14 ~a8~0)) (.cse35 (<= ~a8~0 14)) (.cse11 (<= ~a16~0 4)) (.cse12 (<= ~a17~0 0)) (.cse13 (<= 4 ~a16~0)) (.cse14 (<= ~a21~0 1)) (.cse36 (<= ~a20~0 1)) (.cse15 (<= 1 ~a21~0))) (or (and .cse0 .cse1 (= ~a21~0 0) .cse2 .cse3 .cse4) (not (<= 5 |old(~a16~0)|)) (and .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse5 .cse7 .cse8 .cse3 (not .cse2)) (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (and .cse20 .cse5 .cse21 .cse3 .cse22 .cse9) (not (<= |old(~a21~0)| |old(~a20~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a20~0 |old(~a20~0)|) .cse23 (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 ~a20~0) .cse16 (<= ~a20~0 ~a21~0) .cse18) (and .cse24 .cse11 (or (< 1 ~a20~0) .cse19) .cse13 .cse25 .cse14 (or .cse12 (< 1 ~a17~0)) .cse15 .cse26) (not (<= 1 |old(~a20~0)|)) (and .cse27 .cse20 .cse5 .cse0 .cse21 .cse28) (and .cse5 .cse12 .cse7 .cse3 .cse19) (not (<= |old(~a20~0)| |old(~a17~0)|)) (and (<= ~a16~0 6) .cse29 (<= 6 ~a16~0) .cse25 .cse14 .cse30 .cse15 .cse16 .cse18 .cse19) (and .cse5 (not .cse22) .cse7 (not (= ~a21~0 ~a20~0)) .cse28 .cse4) (and .cse31 .cse12 .cse25 .cse14 .cse15 .cse32 .cse16 .cse18) (not (<= |old(~a20~0)| |old(~a21~0)|)) (and .cse5 .cse1 .cse28 .cse22 .cse33) (not (= ~a12~0 8)) (and .cse10 .cse34 .cse35 .cse31 .cse12 .cse14 .cse36 .cse15 .cse32 .cse17) (and .cse27 .cse0 .cse37 .cse1 .cse28 .cse4) (not (<= |old(~a8~0)| 15)) (and .cse10 .cse24 .cse38 .cse29 .cse11 .cse13 .cse30 .cse36 .cse17 .cse26) (not (<= |old(~a7~0)| 0)) (and .cse5 .cse6 (not .cse4) .cse7 .cse2 .cse8) (and .cse20 .cse5 .cse7 .cse28 .cse9) (and .cse0 .cse6 .cse37 .cse1 .cse2 .cse9) (and (= ~a21~0 ~a17~0) .cse20 .cse6 .cse39 .cse1 .cse4) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (and .cse5 .cse1 .cse2 .cse28 .cse33 .cse4) (and .cse5 .cse7 .cse2 .cse28 .cse8 .cse9) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse37 .cse1 .cse2 .cse28 .cse9) (not (<= 15 |old(~a8~0)|)) (and .cse5 .cse21 .cse23 .cse12 (<= ~a17~0 ~a7~0) (< ~a20~0 (+ ~a17~0 1)) .cse28 (<= ~a7~0 ~a17~0)) (and .cse5 .cse21 .cse2 .cse28 .cse33 .cse4) (and .cse38 .cse34 .cse35 .cse11 .cse12 .cse13 .cse39 .cse14 .cse36 .cse15)))) [2020-10-13 06:05:31,501 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:05:31,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:05:31 BoogieIcfgContainer [2020-10-13 06:05:31,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:05:31,538 INFO L168 Benchmark]: Toolchain (without parser) took 162801.03 ms. Allocated memory was 140.0 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 101.6 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-13 06:05:31,538 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:05:31,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.94 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 170.2 MB in the end (delta: -68.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:05:31,539 INFO L168 Benchmark]: Boogie Preprocessor took 128.17 ms. Allocated memory is still 204.5 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:05:31,540 INFO L168 Benchmark]: RCFGBuilder took 1340.77 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 165.4 MB in the beginning and 179.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:05:31,540 INFO L168 Benchmark]: TraceAbstraction took 160536.90 ms. Allocated memory was 238.6 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 179.5 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:05:31,542 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.94 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 170.2 MB in the end (delta: -68.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.17 ms. Allocated memory is still 204.5 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1340.77 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 165.4 MB in the beginning and 179.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 160536.90 ms. Allocated memory was 238.6 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 179.5 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 551]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((a7 == 1 && a8 == 13) && a21 == 0) && a20 == 1) && 5 == a16) && a17 == 1) || !(5 <= \old(a16))) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0)) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1))) || (((((((((1 <= a7 && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a8 <= 15) && a7 <= 1) && 15 <= a8) && a20 <= 0)) || (((((a20 == a17 && a21 == 1) && 14 == a8) && 5 == a16) && a17 == a7) && a17 == 0)) || !(\old(a21) <= \old(a20))) || (((((((a7 == \old(a7) && a20 == \old(a20)) && a17 <= a20) && a16 == \old(a16)) && a21 <= a20) && a8 <= 15) && a20 <= a21) && 15 <= a8)) || ((((((((13 <= a8 && a16 <= 4) && (1 < a20 || a20 <= 0)) && 4 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && (a17 <= 0 || 1 < a17)) && 1 <= a21) && a8 <= 13)) || !(1 <= \old(a20))) || (((((a20 == 0 && a20 == a17) && a21 == 1) && a7 == 1) && 14 == a8) && a16 == 4)) || ((((a21 == 1 && a17 <= 0) && a8 == 15) && 5 == a16) && a20 <= 0)) || !(\old(a20) <= \old(a17))) || (((((((((a16 <= 6 && 1 <= a17) && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8) && a20 <= 0)) || (((((a21 == 1 && !(a17 == a7)) && a8 == 15) && !(a21 == a20)) && a16 == 4) && a17 == 1)) || (((((((a16 <= 5 && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || !(\old(a20) <= \old(a21))) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a7 == 0)) || !(a12 == 8)) || (((((((((1 <= a7 && 14 <= a8) && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && a20 <= 1) && 1 <= a21) && 5 <= a16) && a7 <= 1)) || (((((a20 == 0 && a7 == 1) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 1)) || !(\old(a8) <= 15)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a20 <= 1) && a7 <= 1) && a8 <= 13)) || !(\old(a7) <= 0)) || (((((a21 == 1 && a16 == 6) && !(a17 == 1)) && a8 == 15) && a20 == 1) && !(a7 == 1))) || ((((a20 == a17 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || (((((a7 == 1 && a16 == 6) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a17 == 0)) || (((((a21 == a17 && a20 == a17) && a16 == 6) && a7 <= 0) && a8 == 13) && a17 == 1)) || !(\old(a17) <= \old(a20))) || !(\old(a20) <= 1)) || (((((a21 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((a21 == 1 && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1)) && a17 == 0)) || !(\old(a16) <= 5)) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 0)) || !(15 <= \old(a8))) || (((((((a21 == 1 && 14 == a8) && a17 <= a20) && a17 <= 0) && a17 <= a7) && a20 < a17 + 1) && a16 == 4) && a7 <= a17)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((((((1 <= a20 && 14 <= a8) && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && 1 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 148.5s, OverallIterations: 31, TraceHistogramMax: 7, AutomataDifference: 62.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 798 SDtfs, 9980 SDslu, 1147 SDs, 0 SdLazy, 21943 SolverSat, 1323 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 792 GetRequests, 351 SyntacticMatches, 25 SemanticMatches, 416 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1185 ImplicationChecksByTransitivity, 46.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=610occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 296 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 262 NumberOfFragments, 4029 HoareAnnotationTreeSize, 206 FomulaSimplifications, 1821 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3826 FormulaSimplificationTreeSizeReductionInter, 11.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 77.6s InterpolantComputationTime, 8193 NumberOfCodeBlocks, 8193 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 8162 ConstructedInterpolants, 0 QuantifiedInterpolants, 23516087 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 8207/8317 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...