/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_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:02:00,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:02:00,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:02:00,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:02:00,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:02:00,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:02:00,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:02:00,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:02:00,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:02:00,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:02:00,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:02:00,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:02:00,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:02:00,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:02:00,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:02:00,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:02:00,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:02:00,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:02:00,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:02:00,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:02:00,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:02:00,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:02:00,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:02:00,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:02:00,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:02:00,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:02:00,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:02:00,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:02:00,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:02:00,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:02:00,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:02:00,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:02:00,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:02:00,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:02:00,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:02:00,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:02:00,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:02:00,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:02:00,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:02:00,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:02:00,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:02:00,489 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 06:02:00,530 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:02:00,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:02:00,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:02:00,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:02:00,533 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:02:00,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:02:00,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:02:00,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:02:00,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:02:00,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:02:00,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:02:00,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:02:00,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:02:00,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:02:00,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:02:00,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:02:00,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:02:00,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:02:00,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:02:00,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:02:00,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:02:00,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:02:00,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:02:00,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:02:00,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:02:00,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:02:00,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:02:00,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:02:00,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:02:00,540 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 06:02:00,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:02:00,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:02:00,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:02:00,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:02:00,882 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:02:00,882 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22.c [2020-10-13 06:02:00,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57356ea86/dd514213907247889141b1a07dc1ee7f/FLAGd4bf3ffc5 [2020-10-13 06:02:01,508 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:02:01,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label22.c [2020-10-13 06:02:01,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57356ea86/dd514213907247889141b1a07dc1ee7f/FLAGd4bf3ffc5 [2020-10-13 06:02:01,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57356ea86/dd514213907247889141b1a07dc1ee7f [2020-10-13 06:02:01,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:02:01,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:02:01,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:02:01,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:02:01,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:02:01,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:02:01" (1/1) ... [2020-10-13 06:02:01,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:01, skipping insertion in model container [2020-10-13 06:02:01,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:02:01" (1/1) ... [2020-10-13 06:02:01,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:02:01,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:02:02,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:02:02,387 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:02:02,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:02:02,537 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:02:02,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02 WrapperNode [2020-10-13 06:02:02,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:02:02,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:02:02,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:02:02,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:02:02,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (1/1) ... [2020-10-13 06:02:02,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (1/1) ... [2020-10-13 06:02:02,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (1/1) ... [2020-10-13 06:02:02,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (1/1) ... [2020-10-13 06:02:02,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (1/1) ... [2020-10-13 06:02:02,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (1/1) ... [2020-10-13 06:02:02,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (1/1) ... [2020-10-13 06:02:02,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:02:02,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:02:02,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:02:02,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:02:02,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (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 06:02:02,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:02:02,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:02:02,777 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:02:02,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:02:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:02:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:02:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:02:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:02:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:02:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:02:02,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:02:04,063 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:02:04,063 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:02:04,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:02:04 BoogieIcfgContainer [2020-10-13 06:02:04,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:02:04,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:02:04,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:02:04,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:02:04,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:02:01" (1/3) ... [2020-10-13 06:02:04,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71573130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:02:04, skipping insertion in model container [2020-10-13 06:02:04,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:02" (2/3) ... [2020-10-13 06:02:04,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71573130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:02:04, skipping insertion in model container [2020-10-13 06:02:04,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:02:04" (3/3) ... [2020-10-13 06:02:04,080 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label22.c [2020-10-13 06:02:04,091 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:02:04,099 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:02:04,115 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:02:04,144 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:02:04,145 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:02:04,145 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:02:04,145 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:02:04,145 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:02:04,145 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:02:04,146 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:02:04,146 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:02:04,174 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:02:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 06:02:04,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:04,191 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, 1, 1] [2020-10-13 06:02:04,191 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:04,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:04,198 INFO L82 PathProgramCache]: Analyzing trace with hash -185558457, now seen corresponding path program 1 times [2020-10-13 06:02:04,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:04,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535503230] [2020-10-13 06:02:04,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:04,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:04,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:06,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:06,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 06:02:06,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:06,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1755 [2020-10-13 06:02:06,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:06,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:02:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:02:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:02:06,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:02:07,246 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-13 06:02:07,456 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-10-13 06:02:07,701 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 49 [2020-10-13 06:02:07,952 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 46 [2020-10-13 06:02:08,188 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 43 [2020-10-13 06:02:08,377 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 40 [2020-10-13 06:02:08,626 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 36 [2020-10-13 06:02:08,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:08,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:08,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:08,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:08,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:08,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:08,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:08,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:02:08,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:08,862 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 06:02:08,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535503230] [2020-10-13 06:02:08,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:02:08,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:02:08,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363739713] [2020-10-13 06:02:08,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:02:08,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:08,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:02:08,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:02:08,889 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:02:09,410 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-13 06:02:09,748 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-13 06:02:10,078 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 112 [2020-10-13 06:02:10,458 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 109 [2020-10-13 06:02:10,993 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 106 [2020-10-13 06:02:11,639 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 103 [2020-10-13 06:02:12,020 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2020-10-13 06:02:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:13,400 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:02:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:13,402 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 133 [2020-10-13 06:02:13,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:13,417 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:02:13,417 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:02:13,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:13,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:02:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:02:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:02:13,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:02:13,491 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 133 [2020-10-13 06:02:13,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:13,492 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:02:13,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:02:13,493 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:02:13,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-13 06:02:13,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:13,497 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, 1, 1] [2020-10-13 06:02:13,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:02:13,497 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:13,498 INFO L82 PathProgramCache]: Analyzing trace with hash -232785844, now seen corresponding path program 1 times [2020-10-13 06:02:13,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:13,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233847669] [2020-10-13 06:02:13,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:15,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:15,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-13 06:02:15,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1910 [2020-10-13 06:02:15,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:15,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:15,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:02:15,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:02:15,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:15,990 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2020-10-13 06:02:16,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:16,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:16,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:16,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:16,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:16,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:16,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 06:02:16,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:16,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:02:16,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:16,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:02:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:16,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233847669] [2020-10-13 06:02:16,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:16,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:16,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731388999] [2020-10-13 06:02:16,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:16,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:16,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:16,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:16,661 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:02:17,053 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:02:17,560 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:02:18,332 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:02:18,725 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:02:18,909 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:02:19,214 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:02:19,485 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:02:20,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:20,121 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:02:20,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:02:20,122 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 141 [2020-10-13 06:02:20,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:20,126 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:02:20,126 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:02:20,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:02:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:02:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:02:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:02:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:02:20,174 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 141 [2020-10-13 06:02:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:20,174 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:02:20,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:02:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-13 06:02:20,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:20,187 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, 1, 1] [2020-10-13 06:02:20,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:02:20,187 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:20,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:20,188 INFO L82 PathProgramCache]: Analyzing trace with hash 487584526, now seen corresponding path program 1 times [2020-10-13 06:02:20,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:20,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668010386] [2020-10-13 06:02:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:20,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:20,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:20,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 06:02:21,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:21,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 919 [2020-10-13 06:02:21,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:02:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:02:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:21,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:21,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:21,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:21,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:02:21,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:02:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:21,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668010386] [2020-10-13 06:02:21,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:21,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:21,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052461195] [2020-10-13 06:02:21,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:21,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:21,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:21,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:21,618 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:02:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:22,802 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 06:02:22,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:22,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-10-13 06:02:22,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:22,808 INFO L225 Difference]: With dead ends: 587 [2020-10-13 06:02:22,808 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 06:02:22,809 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 06:02:22,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 06:02:22,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 06:02:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:02:22,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 06:02:22,827 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 144 [2020-10-13 06:02:22,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:22,827 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 06:02:22,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:22,827 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 06:02:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-13 06:02:22,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:22,830 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, 1, 1] [2020-10-13 06:02:22,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:02:22,831 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:22,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:22,831 INFO L82 PathProgramCache]: Analyzing trace with hash -2014173302, now seen corresponding path program 1 times [2020-10-13 06:02:22,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:22,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288165633] [2020-10-13 06:02:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:22,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:24,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:24,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 06:02:24,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:24,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1721 [2020-10-13 06:02:24,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:24,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:02:24,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:02:24,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,153 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:02:25,286 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:02:25,427 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-13 06:02:25,581 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2020-10-13 06:02:25,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:25,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:25,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:02:25,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 06:02:25,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:02:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:26,084 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 06:02:26,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288165633] [2020-10-13 06:02:26,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:26,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:26,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310704566] [2020-10-13 06:02:26,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:26,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:26,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:26,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:26,087 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 06:02:26,672 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-13 06:02:27,194 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:02:27,600 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:02:27,870 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:02:28,116 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:02:28,466 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2020-10-13 06:02:28,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:28,862 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 06:02:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:02:28,862 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 174 [2020-10-13 06:02:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:28,866 INFO L225 Difference]: With dead ends: 552 [2020-10-13 06:02:28,867 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 06:02:28,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:28,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 06:02:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 06:02:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 06:02:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 06:02:28,886 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 174 [2020-10-13 06:02:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:28,886 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 06:02:28,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 06:02:28,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-13 06:02:28,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:28,890 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, 1, 1] [2020-10-13 06:02:28,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:02:28,891 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:28,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:28,891 INFO L82 PathProgramCache]: Analyzing trace with hash -650018523, now seen corresponding path program 1 times [2020-10-13 06:02:28,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:28,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830192640] [2020-10-13 06:02:28,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:30,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:33,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:33,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 06:02:33,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:02:33,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-13 06:02:33,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:33,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:33,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:02:33,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:02:33,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:34,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:34,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:34,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:34,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:34,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:34,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:34,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:34,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:34,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:34,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:34,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:34,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:02:34,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:34,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:34,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:34,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:02:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:34,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:34,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:34,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:02:34,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:34,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:02:34,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:02:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:34,830 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 06:02:34,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830192640] [2020-10-13 06:02:34,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:34,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:34,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320146971] [2020-10-13 06:02:34,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:34,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:34,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:34,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:34,833 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 13 states. [2020-10-13 06:02:35,374 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-13 06:02:35,513 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:02:35,868 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:02:36,342 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:02:36,619 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:02:36,830 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:02:37,168 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:02:37,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:37,622 INFO L93 Difference]: Finished difference Result 648 states and 810 transitions. [2020-10-13 06:02:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:02:37,622 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2020-10-13 06:02:37,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:37,626 INFO L225 Difference]: With dead ends: 648 [2020-10-13 06:02:37,628 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 06:02:37,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:37,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 06:02:37,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2020-10-13 06:02:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-13 06:02:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 456 transitions. [2020-10-13 06:02:37,663 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 456 transitions. Word has length 191 [2020-10-13 06:02:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:37,665 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 456 transitions. [2020-10-13 06:02:37,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:37,666 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 456 transitions. [2020-10-13 06:02:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 06:02:37,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:37,673 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, 1, 1] [2020-10-13 06:02:37,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:02:37,674 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:37,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:37,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1850712842, now seen corresponding path program 1 times [2020-10-13 06:02:37,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:37,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004805689] [2020-10-13 06:02:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:37,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:39,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 06:02:39,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:39,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1699 [2020-10-13 06:02:39,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:39,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:39,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:02:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:02:39,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:39,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:39,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:39,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:39,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:39,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:39,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:39,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:39,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:40,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:40,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:40,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:40,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:40,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 06:02:40,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:02:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:40,282 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 06:02:40,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004805689] [2020-10-13 06:02:40,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:40,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:40,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413063718] [2020-10-13 06:02:40,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:40,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:40,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:40,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:40,289 INFO L87 Difference]: Start difference. First operand 391 states and 456 transitions. Second operand 13 states. [2020-10-13 06:02:41,186 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:02:41,602 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:02:41,822 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:02:42,034 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:02:42,274 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:02:42,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:42,621 INFO L93 Difference]: Finished difference Result 787 states and 964 transitions. [2020-10-13 06:02:42,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:42,622 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 196 [2020-10-13 06:02:42,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:42,625 INFO L225 Difference]: With dead ends: 787 [2020-10-13 06:02:42,626 INFO L226 Difference]: Without dead ends: 442 [2020-10-13 06:02:42,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:42,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-13 06:02:42,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-13 06:02:42,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-13 06:02:42,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 508 transitions. [2020-10-13 06:02:42,649 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 508 transitions. Word has length 196 [2020-10-13 06:02:42,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:42,650 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 508 transitions. [2020-10-13 06:02:42,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:42,650 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 508 transitions. [2020-10-13 06:02:42,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-13 06:02:42,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:42,653 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, 1, 1] [2020-10-13 06:02:42,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:02:42,653 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:42,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:42,654 INFO L82 PathProgramCache]: Analyzing trace with hash -819318889, now seen corresponding path program 1 times [2020-10-13 06:02:42,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:42,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883423830] [2020-10-13 06:02:42,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:42,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:43,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:44,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:44,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-13 06:02:44,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2101 [2020-10-13 06:02:44,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:44,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:02:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:02:44,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,189 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:02:45,316 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-13 06:02:45,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:45,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:45,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:02:45,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:45,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:02:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:02:45,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:02:45,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:02:45,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,975 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 06:02:45,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883423830] [2020-10-13 06:02:45,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:45,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:45,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944336269] [2020-10-13 06:02:45,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:45,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:45,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:45,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:45,977 INFO L87 Difference]: Start difference. First operand 442 states and 508 transitions. Second operand 13 states. [2020-10-13 06:02:46,617 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:02:46,982 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:02:47,467 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:02:47,719 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:02:48,075 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:02:48,404 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:02:48,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:48,794 INFO L93 Difference]: Finished difference Result 880 states and 1055 transitions. [2020-10-13 06:02:48,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:48,795 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 207 [2020-10-13 06:02:48,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:48,798 INFO L225 Difference]: With dead ends: 880 [2020-10-13 06:02:48,799 INFO L226 Difference]: Without dead ends: 504 [2020-10-13 06:02:48,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:02:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-13 06:02:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-13 06:02:48,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-13 06:02:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 576 transitions. [2020-10-13 06:02:48,819 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 576 transitions. Word has length 207 [2020-10-13 06:02:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:48,819 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 576 transitions. [2020-10-13 06:02:48,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 576 transitions. [2020-10-13 06:02:48,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-13 06:02:48,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:48,823 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, 1, 1] [2020-10-13 06:02:48,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:02:48,823 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:48,824 INFO L82 PathProgramCache]: Analyzing trace with hash 84299463, now seen corresponding path program 1 times [2020-10-13 06:02:48,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:48,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064707529] [2020-10-13 06:02:48,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:48,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:48,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:49,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:49,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-13 06:02:51,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:51,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2569 [2020-10-13 06:02:51,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:02:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:02:51,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,829 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:02:51,994 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:02:52,209 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-13 06:02:52,423 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2020-10-13 06:02:52,613 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 44 [2020-10-13 06:02:52,799 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 40 [2020-10-13 06:02:52,977 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 34 [2020-10-13 06:02:53,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:53,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:53,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:53,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:53,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:53,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:53,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:53,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:53,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:53,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:53,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:53,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:02:53,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:53,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:02:53,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:53,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:53,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:53,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:53,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:53,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:02:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:53,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:53,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:53,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:02:53,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:02:53,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:02:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:53,538 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 06:02:53,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064707529] [2020-10-13 06:02:53,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:53,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:53,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715836767] [2020-10-13 06:02:53,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:53,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:53,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:53,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:53,542 INFO L87 Difference]: Start difference. First operand 504 states and 576 transitions. Second operand 13 states. [2020-10-13 06:02:54,064 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-10-13 06:02:54,219 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:02:54,397 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:02:54,824 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-13 06:02:55,250 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112 [2020-10-13 06:02:55,476 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 06:02:55,760 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-13 06:02:56,100 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2020-10-13 06:02:56,483 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-10-13 06:02:56,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:56,808 INFO L93 Difference]: Finished difference Result 1002 states and 1186 transitions. [2020-10-13 06:02:56,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:02:56,809 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 210 [2020-10-13 06:02:56,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:56,812 INFO L225 Difference]: With dead ends: 1002 [2020-10-13 06:02:56,812 INFO L226 Difference]: Without dead ends: 547 [2020-10-13 06:02:56,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:56,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-13 06:02:56,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2020-10-13 06:02:56,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-13 06:02:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 621 transitions. [2020-10-13 06:02:56,841 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 621 transitions. Word has length 210 [2020-10-13 06:02:56,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:56,841 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 621 transitions. [2020-10-13 06:02:56,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:56,842 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 621 transitions. [2020-10-13 06:02:56,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-13 06:02:56,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:56,845 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, 1, 1] [2020-10-13 06:02:56,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:02:56,846 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:56,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:56,846 INFO L82 PathProgramCache]: Analyzing trace with hash -431907549, now seen corresponding path program 1 times [2020-10-13 06:02:56,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:56,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151552221] [2020-10-13 06:02:56,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:56,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:59,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:59,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-13 06:02:59,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:59,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2681 [2020-10-13 06:02:59,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:59,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:02:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:02:59,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:59,959 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:03:00,101 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:03:00,310 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2020-10-13 06:03:00,517 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2020-10-13 06:03:00,728 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 38 [2020-10-13 06:03:00,927 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 36 [2020-10-13 06:03:01,061 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 33 [2020-10-13 06:03:01,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:01,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:01,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:01,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:01,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:01,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:01,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:01,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:01,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:01,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:01,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:01,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:01,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:01,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:01,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:01,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:01,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:01,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:01,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:01,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:01,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:01,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:01,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:01,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:03:01,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:03:01,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:03:01,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:01,431 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 06:03:01,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151552221] [2020-10-13 06:03:01,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:01,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:01,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969781550] [2020-10-13 06:03:01,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:01,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:01,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:01,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:01,446 INFO L87 Difference]: Start difference. First operand 542 states and 621 transitions. Second operand 13 states. [2020-10-13 06:03:02,099 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:03:02,457 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:03:02,821 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:03:03,101 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:03:03,454 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-13 06:03:03,785 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-13 06:03:04,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:04,088 INFO L93 Difference]: Finished difference Result 1080 states and 1278 transitions. [2020-10-13 06:03:04,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:03:04,089 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 213 [2020-10-13 06:03:04,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:04,093 INFO L225 Difference]: With dead ends: 1080 [2020-10-13 06:03:04,093 INFO L226 Difference]: Without dead ends: 587 [2020-10-13 06:03:04,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:03:04,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-13 06:03:04,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2020-10-13 06:03:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:03:04,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:03:04,117 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 213 [2020-10-13 06:03:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:04,118 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:03:04,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:04,118 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:03:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-13 06:03:04,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:04,122 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:04,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:03:04,122 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:04,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1815213426, now seen corresponding path program 1 times [2020-10-13 06:03:04,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:04,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442892981] [2020-10-13 06:03:04,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:04,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:08,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-13 06:03:08,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:08,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3904 [2020-10-13 06:03:08,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:08,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:08,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:03:08,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:08,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,532 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:03:08,655 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:03:09,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:09,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:09,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:09,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:09,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:09,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:09,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:09,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:09,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:09,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:09,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:09,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:09,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:09,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:03:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:09,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:09,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:03:09,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:09,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:09,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:09,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:09,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:03:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:09,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:09,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:03:09,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:09,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:09,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:09,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:09,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:09,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:03:09,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:03:09,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442892981] [2020-10-13 06:03:09,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:09,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:09,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916075426] [2020-10-13 06:03:09,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:09,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:09,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:09,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:09,295 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:03:09,791 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:03:10,001 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 06:03:10,250 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:03:10,859 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:03:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:11,088 INFO L93 Difference]: Finished difference Result 1162 states and 1374 transitions. [2020-10-13 06:03:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:03:11,092 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 217 [2020-10-13 06:03:11,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:11,095 INFO L225 Difference]: With dead ends: 1162 [2020-10-13 06:03:11,095 INFO L226 Difference]: Without dead ends: 626 [2020-10-13 06:03:11,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:11,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-13 06:03:11,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 585. [2020-10-13 06:03:11,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:03:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:03:11,118 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 217 [2020-10-13 06:03:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:11,119 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:03:11,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:03:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-13 06:03:11,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:11,123 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, 1, 1] [2020-10-13 06:03:11,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:03:11,124 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:11,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:11,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1210029908, now seen corresponding path program 1 times [2020-10-13 06:03:11,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:11,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142163904] [2020-10-13 06:03:11,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:11,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-13 06:03:13,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:13,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1833 [2020-10-13 06:03:13,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:03:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:13,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,499 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:03:13,695 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:03:13,929 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 52 [2020-10-13 06:03:14,142 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 49 [2020-10-13 06:03:14,355 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-13 06:03:14,565 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-13 06:03:14,773 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2020-10-13 06:03:14,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:14,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:14,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:14,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:14,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:14,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:14,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:14,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:14,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:14,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:14,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:14,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:14,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:14,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:14,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:14,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:14,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:14,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:14,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:14,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:14,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:14,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:14,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:14,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:14,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:14,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:03:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:14,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:14,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:03:14,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:14,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:14,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:03:14,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:15,147 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 06:03:15,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142163904] [2020-10-13 06:03:15,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:15,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:15,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367030974] [2020-10-13 06:03:15,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:15,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:15,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:15,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:15,149 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:03:15,362 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:03:15,540 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:03:15,959 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-13 06:03:16,487 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 112 [2020-10-13 06:03:16,848 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2020-10-13 06:03:17,189 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 106 [2020-10-13 06:03:17,450 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-10-13 06:03:18,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:18,344 INFO L93 Difference]: Finished difference Result 1197 states and 1422 transitions. [2020-10-13 06:03:18,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:03:18,345 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 223 [2020-10-13 06:03:18,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:18,348 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 06:03:18,349 INFO L226 Difference]: Without dead ends: 678 [2020-10-13 06:03:18,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:03:18,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-13 06:03:18,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 593. [2020-10-13 06:03:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:03:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 682 transitions. [2020-10-13 06:03:18,374 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 682 transitions. Word has length 223 [2020-10-13 06:03:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:18,375 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 682 transitions. [2020-10-13 06:03:18,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 682 transitions. [2020-10-13 06:03:18,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-13 06:03:18,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:18,378 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, 1, 1] [2020-10-13 06:03:18,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:03:18,379 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:18,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:18,379 INFO L82 PathProgramCache]: Analyzing trace with hash 2106714436, now seen corresponding path program 1 times [2020-10-13 06:03:18,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:18,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645222001] [2020-10-13 06:03:18,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:18,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:19,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:20,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:20,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-13 06:03:20,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:20,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2232 [2020-10-13 06:03:20,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:20,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:20,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:03:20,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:20,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:21,116 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:03:21,235 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:03:21,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:21,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:21,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:21,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:21,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:21,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:21,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:21,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:21,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:21,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:21,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:21,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:21,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:21,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:21,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:21,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:21,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:21,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:21,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:21,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:03:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:21,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:03:21,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:03:21,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:03:21,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:21,923 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:03:21,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645222001] [2020-10-13 06:03:21,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:21,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:21,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414924348] [2020-10-13 06:03:21,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:21,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:21,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:21,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:21,925 INFO L87 Difference]: Start difference. First operand 593 states and 682 transitions. Second operand 13 states. [2020-10-13 06:03:22,354 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:03:22,699 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:03:22,957 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:03:23,113 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:03:23,419 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:03:23,649 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:03:23,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:23,879 INFO L93 Difference]: Finished difference Result 1183 states and 1405 transitions. [2020-10-13 06:03:23,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:03:23,887 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 235 [2020-10-13 06:03:23,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:23,890 INFO L225 Difference]: With dead ends: 1183 [2020-10-13 06:03:23,890 INFO L226 Difference]: Without dead ends: 639 [2020-10-13 06:03:23,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:23,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-10-13 06:03:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 593. [2020-10-13 06:03:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:03:23,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 681 transitions. [2020-10-13 06:03:23,928 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 681 transitions. Word has length 235 [2020-10-13 06:03:23,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:23,928 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 681 transitions. [2020-10-13 06:03:23,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 681 transitions. [2020-10-13 06:03:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-13 06:03:23,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:23,932 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, 1, 1] [2020-10-13 06:03:23,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:03:23,933 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:23,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:23,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1444424881, now seen corresponding path program 1 times [2020-10-13 06:03:23,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:23,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927626212] [2020-10-13 06:03:23,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:24,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:24,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:24,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-13 06:03:26,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:26,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2289 [2020-10-13 06:03:26,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:03:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:03:26,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:26,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:26,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:26,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:26,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:26,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:03:26,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:26,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:26,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:26,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:03:26,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:03:26,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:03:26,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927626212] [2020-10-13 06:03:26,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:26,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:26,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867421318] [2020-10-13 06:03:26,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:26,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:26,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:26,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:26,922 INFO L87 Difference]: Start difference. First operand 593 states and 681 transitions. Second operand 13 states. [2020-10-13 06:03:27,853 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:03:28,077 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:03:28,576 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:03:28,854 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:03:29,115 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:03:29,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:29,560 INFO L93 Difference]: Finished difference Result 1184 states and 1408 transitions. [2020-10-13 06:03:29,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:03:29,561 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 247 [2020-10-13 06:03:29,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:29,565 INFO L225 Difference]: With dead ends: 1184 [2020-10-13 06:03:29,565 INFO L226 Difference]: Without dead ends: 610 [2020-10-13 06:03:29,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:03:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-13 06:03:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 608. [2020-10-13 06:03:29,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-13 06:03:29,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 697 transitions. [2020-10-13 06:03:29,587 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 697 transitions. Word has length 247 [2020-10-13 06:03:29,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:29,588 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 697 transitions. [2020-10-13 06:03:29,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:29,588 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 697 transitions. [2020-10-13 06:03:29,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 06:03:29,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:29,591 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, 1, 1] [2020-10-13 06:03:29,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:03:29,591 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:29,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:29,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2100100814, now seen corresponding path program 1 times [2020-10-13 06:03:29,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:29,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537355136] [2020-10-13 06:03:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:29,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:29,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:29,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:29,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:30,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:31,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:31,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-13 06:03:31,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1608 [2020-10-13 06:03:31,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:03:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:03:31,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:31,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:31,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:31,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:31,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:31,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:31,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:31,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:31,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:31,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:31,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:31,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:31,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:31,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:31,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:31,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:31,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:31,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:03:31,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:31,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:03:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:31,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:31,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:31,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:03:31,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:31,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:31,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:31,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:31,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:31,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:03:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:31,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:31,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:31,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:03:31,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:31,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:03:31,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:31,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:03:31,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:31,591 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 06:03:31,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537355136] [2020-10-13 06:03:31,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:31,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:31,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549722765] [2020-10-13 06:03:31,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:31,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:31,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:31,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:31,593 INFO L87 Difference]: Start difference. First operand 608 states and 697 transitions. Second operand 5 states. [2020-10-13 06:03:32,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:32,587 INFO L93 Difference]: Finished difference Result 1236 states and 1473 transitions. [2020-10-13 06:03:32,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:32,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 249 [2020-10-13 06:03:32,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:32,590 INFO L225 Difference]: With dead ends: 1236 [2020-10-13 06:03:32,590 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:03:32,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:32,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:03:32,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:03:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:03:32,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:03:32,607 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 249 [2020-10-13 06:03:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:32,607 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:03:32,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:03:32,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-13 06:03:32,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:32,610 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, 1, 1] [2020-10-13 06:03:32,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:03:32,610 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:32,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:32,610 INFO L82 PathProgramCache]: Analyzing trace with hash 273141450, now seen corresponding path program 1 times [2020-10-13 06:03:32,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:32,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145442726] [2020-10-13 06:03:32,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:32,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:37,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:37,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 06:03:37,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:03:37,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4723 [2020-10-13 06:03:37,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:37,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:37,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:03:37,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:03:37,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:37,925 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-13 06:03:38,125 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-13 06:03:38,354 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2020-10-13 06:03:38,569 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-10-13 06:03:38,765 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 42 [2020-10-13 06:03:38,956 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 38 [2020-10-13 06:03:39,128 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 34 [2020-10-13 06:03:39,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:39,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:39,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:39,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:39,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:39,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:39,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:39,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:39,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:39,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:39,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:39,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:39,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:39,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:39,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:39,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:39,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:03:39,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:39,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:39,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:39,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:39,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:39,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:39,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:39,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:39,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:39,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:39,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:03:39,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:39,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:39,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:39,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:39,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:39,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:39,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:39,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:39,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:39,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:39,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:39,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:03:39,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:39,497 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 06:03:39,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145442726] [2020-10-13 06:03:39,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:39,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:39,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000147326] [2020-10-13 06:03:39,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:39,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:39,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:39,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:39,499 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:03:40,042 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:03:40,220 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:03:40,552 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2020-10-13 06:03:40,881 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2020-10-13 06:03:41,185 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 108 [2020-10-13 06:03:41,664 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 105 [2020-10-13 06:03:42,102 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 100 [2020-10-13 06:03:42,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:42,588 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:03:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:03:42,589 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 260 [2020-10-13 06:03:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:42,592 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:03:42,593 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:03:42,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:03:42,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:03:42,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:03:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:03:42,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:03:42,606 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 260 [2020-10-13 06:03:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:42,606 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:03:42,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:03:42,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-13 06:03:42,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:42,609 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, 1, 1] [2020-10-13 06:03:42,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:03:42,610 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:42,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:42,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1539112407, now seen corresponding path program 1 times [2020-10-13 06:03:42,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:42,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705398032] [2020-10-13 06:03:42,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:42,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:43,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-13 06:03:43,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:43,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-13 06:03:43,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:03:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:03:43,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:43,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:43,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:43,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:43,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:43,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:43,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:43,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:43,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:43,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:43,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:43,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:43,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:03:43,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:43,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:43,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:43,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:43,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:43,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:43,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:43,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:43,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:43,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:43,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:43,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:43,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:43,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:43,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:43,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:43,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:43,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:43,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:43,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:03:43,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:43,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:03:43,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:43,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:43,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:43,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:03:43,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:43,425 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 06:03:43,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705398032] [2020-10-13 06:03:43,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:43,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:43,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900112727] [2020-10-13 06:03:43,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:43,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:43,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:43,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:43,427 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:03:44,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:44,307 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:03:44,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:44,308 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 272 [2020-10-13 06:03:44,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:44,311 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:03:44,311 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:03:44,313 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 06:03:44,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:03:44,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:03:44,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:03:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:03:44,323 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 272 [2020-10-13 06:03:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:44,324 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:03:44,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:03:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-13 06:03:44,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:44,326 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, 1, 1] [2020-10-13 06:03:44,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:03:44,327 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:44,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:44,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1475348557, now seen corresponding path program 1 times [2020-10-13 06:03:44,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:44,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565880297] [2020-10-13 06:03:44,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:44,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-13 06:03:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1189 [2020-10-13 06:03:45,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:03:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:03:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:45,992 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2020-10-13 06:03:46,259 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2020-10-13 06:03:46,415 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 41 [2020-10-13 06:03:46,581 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:03:46,744 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:03:46,889 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-13 06:03:46,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:46,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:46,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:46,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:46,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:46,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:46,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:46,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:46,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:46,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:46,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:46,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:46,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:46,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:46,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:47,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:47,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:47,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:47,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:47,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:47,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:47,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:47,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:47,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:47,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:47,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:47,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:47,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:03:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:47,261 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 06:03:47,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565880297] [2020-10-13 06:03:47,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:47,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:47,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104718299] [2020-10-13 06:03:47,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:47,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:47,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:47,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:47,263 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:03:47,852 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:03:48,191 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-10-13 06:03:48,500 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2020-10-13 06:03:48,849 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-10-13 06:03:49,153 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:03:49,575 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:03:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:49,879 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:03:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:49,880 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 275 [2020-10-13 06:03:49,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:49,883 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:03:49,883 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:03:49,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:03:49,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:03:49,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:03:49,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:03:49,895 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 275 [2020-10-13 06:03:49,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:49,896 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:03:49,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:49,896 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:03:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-13 06:03:49,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:49,898 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, 1, 1] [2020-10-13 06:03:49,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:03:49,898 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:49,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:49,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1677390793, now seen corresponding path program 1 times [2020-10-13 06:03:49,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:49,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871450430] [2020-10-13 06:03:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:50,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:50,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:50,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-13 06:03:50,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:50,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-13 06:03:50,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:03:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:03:50,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:50,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:50,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:50,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:50,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:50,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:50,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:50,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:50,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:50,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:50,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:50,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:50,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:03:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:50,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:50,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:50,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:50,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:50,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:03:50,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:50,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:50,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:50,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:50,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:50,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:50,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:50,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:50,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:50,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:50,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:50,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:03:50,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:50,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:03:50,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:50,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:50,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:50,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:03:50,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:51,011 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 06:03:51,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871450430] [2020-10-13 06:03:51,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:51,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:51,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313086208] [2020-10-13 06:03:51,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:51,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:51,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:51,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:51,013 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 5 states. [2020-10-13 06:03:51,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:51,942 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:03:51,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:51,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-10-13 06:03:51,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:51,946 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:03:51,946 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:03:51,947 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 06:03:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:03:51,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:03:51,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:03:51,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:03:51,960 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 277 [2020-10-13 06:03:51,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:51,960 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:03:51,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:51,961 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:03:51,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-13 06:03:51,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:51,963 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, 1, 1] [2020-10-13 06:03:51,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:03:51,964 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:51,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:51,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1431150512, now seen corresponding path program 1 times [2020-10-13 06:03:51,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:51,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479361894] [2020-10-13 06:03:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-13 06:03:53,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-10-13 06:03:53,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:03:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:03:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:53,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:03:53,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:53,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:53,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:53,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:53,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:53,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:53,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:53,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:53,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:03:53,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:53,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:03:53,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:53,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:03:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,466 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 06:03:53,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479361894] [2020-10-13 06:03:53,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:53,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:53,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614483213] [2020-10-13 06:03:53,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:53,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:53,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:53,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:53,468 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 5 states. [2020-10-13 06:03:54,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:54,295 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:03:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:54,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 295 [2020-10-13 06:03:54,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:54,298 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:03:54,298 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:03:54,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:03:54,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:03:54,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:03:54,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:03:54,311 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 295 [2020-10-13 06:03:54,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:54,312 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:03:54,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:03:54,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-13 06:03:54,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:54,318 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, 1, 1] [2020-10-13 06:03:54,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:03:54,318 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:54,319 INFO L82 PathProgramCache]: Analyzing trace with hash 722758659, now seen corresponding path program 1 times [2020-10-13 06:03:54,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:54,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646092492] [2020-10-13 06:03:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:54,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-13 06:03:55,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1119 [2020-10-13 06:03:55,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:03:55,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:03:55,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:03:55,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:55,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:03:55,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:55,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:03:55,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:55,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:03:55,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:55,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:55,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:03:55,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:03:55,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:03:55,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:56,145 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 06:03:56,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646092492] [2020-10-13 06:03:56,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:56,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:56,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154067098] [2020-10-13 06:03:56,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:56,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:56,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:56,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:56,147 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 5 states. [2020-10-13 06:03:57,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:57,001 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:03:57,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:57,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-10-13 06:03:57,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:57,004 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:03:57,004 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:03:57,005 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 06:03:57,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:03:57,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:03:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:03:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:03:57,016 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 294 [2020-10-13 06:03:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:57,017 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:03:57,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:03:57,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-13 06:03:57,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:57,019 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, 1, 1] [2020-10-13 06:03:57,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:03:57,020 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:57,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:57,020 INFO L82 PathProgramCache]: Analyzing trace with hash -432078074, now seen corresponding path program 1 times [2020-10-13 06:03:57,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:57,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110826733] [2020-10-13 06:03:57,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:58,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:58,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-13 06:03:58,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:58,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1322 [2020-10-13 06:03:58,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:03:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:03:58,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:59,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:59,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:59,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:59,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:59,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:59,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:59,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:59,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:59,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:59,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:59,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:03:59,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:03:59,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:59,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:03:59,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,381 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 06:03:59,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110826733] [2020-10-13 06:03:59,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:59,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:59,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658097410] [2020-10-13 06:03:59,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:59,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:59,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:59,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:59,383 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:04:00,024 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 06:04:00,261 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:04:00,606 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:04:00,873 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:04:01,178 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-10-13 06:04:01,489 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2020-10-13 06:04:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:01,767 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:04:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:01,768 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 304 [2020-10-13 06:04:01,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:01,770 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:04:01,771 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:04:01,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:04:01,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:04:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:04:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:04:01,783 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 304 [2020-10-13 06:04:01,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:01,784 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:04:01,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:04:01,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-13 06:04:01,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:01,787 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, 1, 1] [2020-10-13 06:04:01,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:04:01,787 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:01,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:01,787 INFO L82 PathProgramCache]: Analyzing trace with hash -269873793, now seen corresponding path program 1 times [2020-10-13 06:04:01,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:01,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366246717] [2020-10-13 06:04:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:01,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-13 06:04:02,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:02,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584 [2020-10-13 06:04:02,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:02,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:04:02,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:04:02,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:02,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:02,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:02,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:02,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:02,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:02,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:02,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:02,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:04:02,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:04:02,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:04:02,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,819 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 06:04:02,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366246717] [2020-10-13 06:04:02,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:02,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:02,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080519435] [2020-10-13 06:04:02,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:02,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:02,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:02,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:02,821 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:04:03,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:03,672 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:04:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:03,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2020-10-13 06:04:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:03,678 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:04:03,679 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:04:03,680 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 06:04:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:04:03,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:04:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:04:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:04:03,692 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 313 [2020-10-13 06:04:03,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:03,693 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:04:03,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:04:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-13 06:04:03,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:03,696 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, 1, 1] [2020-10-13 06:04:03,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:04:03,696 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:03,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1073768034, now seen corresponding path program 1 times [2020-10-13 06:04:03,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:03,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561843547] [2020-10-13 06:04:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-13 06:04:04,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-13 06:04:04,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:04,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:04:04,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:04:04,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:04,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:04,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:04,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:04,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:04:04,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:04,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:04,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:04,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:04,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:04,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:04,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:04,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:04,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:04,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:04,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:04,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:04:04,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:04,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:04:04,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:04:04,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,725 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 06:04:04,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561843547] [2020-10-13 06:04:04,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:04,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:04,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146980846] [2020-10-13 06:04:04,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:04,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:04,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:04,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:04,727 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 5 states. [2020-10-13 06:04:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:05,534 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:04:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:05,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2020-10-13 06:04:05,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:05,537 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:04:05,537 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:04:05,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:05,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:04:05,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:04:05,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:04:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:04:05,550 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 318 [2020-10-13 06:04:05,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:05,550 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:04:05,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:05,551 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:04:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-13 06:04:05,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:05,553 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, 1, 1] [2020-10-13 06:04:05,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:04:05,554 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:05,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:05,554 INFO L82 PathProgramCache]: Analyzing trace with hash -815210834, now seen corresponding path program 1 times [2020-10-13 06:04:05,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:05,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207417086] [2020-10-13 06:04:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:05,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:07,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-13 06:04:07,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2120 [2020-10-13 06:04:07,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:07,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:07,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:04:07,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:04:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:07,954 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2020-10-13 06:04:08,158 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:04:08,406 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 06:04:08,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:08,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:08,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:08,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:08,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:08,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:08,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:08,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:08,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:08,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:08,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:08,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:08,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:08,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:04:08,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:08,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:04:08,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:04:08,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,112 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 06:04:09,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207417086] [2020-10-13 06:04:09,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:09,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:04:09,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73423857] [2020-10-13 06:04:09,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:04:09,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:09,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:04:09,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:04:09,114 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 14 states. [2020-10-13 06:04:09,861 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-10-13 06:04:10,166 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-13 06:04:10,547 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2020-10-13 06:04:10,850 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2020-10-13 06:04:11,190 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-13 06:04:11,456 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-13 06:04:11,879 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2020-10-13 06:04:12,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:12,233 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:04:12,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:12,234 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 324 [2020-10-13 06:04:12,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:12,237 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:04:12,237 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:04:12,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:04:12,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:04:12,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:04:12,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:04:12,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:04:12,251 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 324 [2020-10-13 06:04:12,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:12,251 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:04:12,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:04:12,252 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:04:12,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-13 06:04:12,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:12,255 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, 1, 1] [2020-10-13 06:04:12,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:04:12,255 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:12,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:12,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1302133365, now seen corresponding path program 1 times [2020-10-13 06:04:12,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:12,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619982602] [2020-10-13 06:04:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:12,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:12,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-10-13 06:04:12,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-13 06:04:12,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:12,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:04:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:04:12,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:13,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:13,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:13,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:13,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:13,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:13,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:13,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:04:13,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:13,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:13,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:13,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:13,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:13,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:13,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:13,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:13,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:13,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:13,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:13,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:13,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:13,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:13,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:13,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:13,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:13,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:04:13,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:13,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:13,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:13,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:04:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:13,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:04:13,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:13,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:13,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:13,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:13,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:13,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:04:13,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:13,281 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 06:04:13,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619982602] [2020-10-13 06:04:13,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:13,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:13,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943320018] [2020-10-13 06:04:13,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:13,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:13,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:13,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:13,282 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 5 states. [2020-10-13 06:04:14,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:14,160 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:04:14,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:14,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 329 [2020-10-13 06:04:14,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:14,164 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:04:14,164 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:04:14,166 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 06:04:14,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:04:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:04:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:04:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:04:14,178 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 329 [2020-10-13 06:04:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:14,178 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:04:14,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:14,179 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:04:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-13 06:04:14,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:14,182 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, 1, 1] [2020-10-13 06:04:14,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:04:14,182 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:14,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:14,182 INFO L82 PathProgramCache]: Analyzing trace with hash 23227047, now seen corresponding path program 1 times [2020-10-13 06:04:14,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:14,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417646278] [2020-10-13 06:04:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-10-13 06:04:14,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:14,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-10-13 06:04:14,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:04:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:04:14,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:14,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:14,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:14,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:14,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:14,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:15,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:15,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:15,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:15,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:15,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:15,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:15,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:15,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:15,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:15,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:15,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:15,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:15,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:15,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:15,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:15,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:04:15,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:15,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:04:15,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:04:15,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:15,227 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 06:04:15,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417646278] [2020-10-13 06:04:15,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:15,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:15,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689973151] [2020-10-13 06:04:15,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:15,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:15,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:15,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:15,229 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:04:16,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:16,076 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:04:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:16,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2020-10-13 06:04:16,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:16,084 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:04:16,084 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:04:16,086 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 06:04:16,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:04:16,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:04:16,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:04:16,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:04:16,098 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 333 [2020-10-13 06:04:16,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:16,098 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:04:16,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:16,099 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:04:16,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-13 06:04:16,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:16,102 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, 1, 1] [2020-10-13 06:04:16,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:04:16,102 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:16,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:16,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2060892871, now seen corresponding path program 1 times [2020-10-13 06:04:16,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:16,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179369505] [2020-10-13 06:04:16,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:16,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:16,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-13 06:04:19,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3128 [2020-10-13 06:04:19,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:04:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:04:19,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:19,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:19,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:19,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:19,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:19,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:19,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:19,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:19,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:19,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:19,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:04:19,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:19,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:19,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:19,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:04:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:19,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:19,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:19,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:04:19,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:19,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:19,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:04:19,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:20,151 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 06:04:20,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179369505] [2020-10-13 06:04:20,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:20,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:20,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248608538] [2020-10-13 06:04:20,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:20,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:20,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:20,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:20,153 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:04:20,682 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:04:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:21,792 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:04:21,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:21,793 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 342 [2020-10-13 06:04:21,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:21,795 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:04:21,795 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:04:21,796 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 06:04:21,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:04:21,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:04:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:04:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:04:21,807 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 342 [2020-10-13 06:04:21,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:21,808 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:04:21,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:21,808 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:04:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-13 06:04:21,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:21,812 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, 1, 1] [2020-10-13 06:04:21,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:04:21,812 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:21,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:21,813 INFO L82 PathProgramCache]: Analyzing trace with hash -540672396, now seen corresponding path program 1 times [2020-10-13 06:04:21,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:21,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779643389] [2020-10-13 06:04:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:22,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-13 06:04:23,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1441 [2020-10-13 06:04:23,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:04:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:04:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:23,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:23,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:23,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:23,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:23,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:23,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:23,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:23,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:23,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:04:23,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:23,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:23,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:04:23,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:23,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 06:04:23,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:23,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:23,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:23,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:04:23,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:23,950 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:04:23,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779643389] [2020-10-13 06:04:23,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:23,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:23,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745248368] [2020-10-13 06:04:23,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:23,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:23,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:23,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:23,951 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:04:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:24,694 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:04:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:24,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 345 [2020-10-13 06:04:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:24,698 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:04:24,698 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:04:24,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:24,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:04:24,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:04:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:04:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:04:24,710 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 345 [2020-10-13 06:04:24,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:24,710 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:04:24,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:24,711 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:04:24,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-13 06:04:24,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:24,713 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, 1, 1] [2020-10-13 06:04:24,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:04:24,714 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:24,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:24,714 INFO L82 PathProgramCache]: Analyzing trace with hash 498710879, now seen corresponding path program 1 times [2020-10-13 06:04:24,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:24,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067171599] [2020-10-13 06:04:24,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:24,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:24,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-13 06:04:27,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:27,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2696 [2020-10-13 06:04:27,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:04:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:04:27,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,818 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:04:27,977 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-13 06:04:28,119 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2020-10-13 06:04:28,250 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 36 [2020-10-13 06:04:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:28,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:28,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:28,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:28,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:28,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:28,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:28,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:28,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:28,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:28,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:28,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:28,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:28,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:28,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:28,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:28,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:28,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:28,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:28,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:28,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:28,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:28,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:28,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:28,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:28,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:28,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:28,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:04:28,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:28,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:04:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:28,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:04:28,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:28,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:04:28,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:04:28,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,940 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 06:04:28,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067171599] [2020-10-13 06:04:28,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:28,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:28,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211892125] [2020-10-13 06:04:28,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:28,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:28,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:28,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:28,942 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:04:29,723 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:04:30,016 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2020-10-13 06:04:30,397 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 112 [2020-10-13 06:04:30,730 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2020-10-13 06:04:31,084 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 106 [2020-10-13 06:04:31,356 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 103 [2020-10-13 06:04:31,667 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2020-10-13 06:04:32,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:32,105 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:04:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:32,106 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 347 [2020-10-13 06:04:32,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:32,109 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:04:32,109 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:04:32,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:04:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:04:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:04:32,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:04:32,123 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 347 [2020-10-13 06:04:32,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:32,124 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:04:32,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:32,124 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:04:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-13 06:04:32,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:32,127 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, 1, 1] [2020-10-13 06:04:32,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:04:32,127 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:32,128 INFO L82 PathProgramCache]: Analyzing trace with hash -79108013, now seen corresponding path program 1 times [2020-10-13 06:04:32,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:32,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851455308] [2020-10-13 06:04:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:32,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 368 [2020-10-13 06:04:34,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:34,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2021 [2020-10-13 06:04:34,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:34,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:04:34,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:04:34,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:34,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:34,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:34,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:34,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:34,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:34,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:34,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:34,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:34,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:34,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:04:34,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:34,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:04:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:04:34,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:04:34,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:04:34,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,742 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:04:34,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851455308] [2020-10-13 06:04:34,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:34,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:34,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791673169] [2020-10-13 06:04:34,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:34,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:34,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:34,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:34,743 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 5 states. [2020-10-13 06:04:35,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:35,577 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:04:35,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:35,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 348 [2020-10-13 06:04:35,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:35,581 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:04:35,581 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:04:35,582 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 06:04:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:04:35,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:04:35,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:04:35,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:04:35,595 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 348 [2020-10-13 06:04:35,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:35,596 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:04:35,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:35,596 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:04:35,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-13 06:04:35,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:35,599 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, 1, 1] [2020-10-13 06:04:35,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:04:35,599 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:35,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:35,600 INFO L82 PathProgramCache]: Analyzing trace with hash 797155896, now seen corresponding path program 1 times [2020-10-13 06:04:35,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:35,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976851635] [2020-10-13 06:04:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:35,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:35,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-13 06:04:36,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1183 [2020-10-13 06:04:36,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:04:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:04:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:36,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:36,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:36,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:36,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:36,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:36,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:36,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:36,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:36,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:37,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:37,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:37,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:37,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:37,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:37,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:37,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:37,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:04:37,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:04:37,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:04:37,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,243 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 06:04:37,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976851635] [2020-10-13 06:04:37,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:37,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:37,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414246571] [2020-10-13 06:04:37,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:37,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:37,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:37,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:37,245 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 5 states. [2020-10-13 06:04:38,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:38,064 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:04:38,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:38,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 347 [2020-10-13 06:04:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:38,067 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:04:38,067 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:04:38,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:04:38,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:04:38,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:04:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:04:38,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:04:38,081 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 347 [2020-10-13 06:04:38,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:38,081 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:04:38,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:38,082 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:04:38,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-13 06:04:38,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:38,085 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, 1, 1] [2020-10-13 06:04:38,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:04:38,085 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:38,086 INFO L82 PathProgramCache]: Analyzing trace with hash -872034805, now seen corresponding path program 1 times [2020-10-13 06:04:38,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:38,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173546869] [2020-10-13 06:04:38,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:38,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 389 [2020-10-13 06:04:38,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:38,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-13 06:04:38,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:04:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:04:38,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:38,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:38,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:38,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:38,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:38,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:38,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:38,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:38,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:38,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:04:38,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:38,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:38,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:38,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:38,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:38,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:38,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:38,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:38,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:38,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:38,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:38,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:38,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:38,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:38,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:38,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:38,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:38,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:04:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:38,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:38,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:38,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:38,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:38,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:38,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:04:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:38,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:04:38,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:38,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:38,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:38,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:38,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:38,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:38,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:04:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:38,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:04:38,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:38,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:04:38,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:38,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:04:38,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:04:39,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173546869] [2020-10-13 06:04:39,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:39,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:04:39,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198230707] [2020-10-13 06:04:39,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:04:39,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:39,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:04:39,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:04:39,084 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 5 states. [2020-10-13 06:04:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:39,693 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:04:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:04:39,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 369 [2020-10-13 06:04:39,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:39,695 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:04:39,695 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:04:39,697 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 06:04:39,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:04:39,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:04:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:04:39,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:04:39,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 369 [2020-10-13 06:04:39,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:39,698 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:04:39,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:04:39,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:04:39,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:04:39,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 06:04:39,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:04:40,397 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2020-10-13 06:04:40,524 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 175 [2020-10-13 06:04:46,894 WARN L193 SmtUtils]: Spent 6.26 s on a formula simplification. DAG size of input: 351 DAG size of output: 267 [2020-10-13 06:04:48,734 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 186 DAG size of output: 151 [2020-10-13 06:04:50,023 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 175 DAG size of output: 115 [2020-10-13 06:04:50,028 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:04:50,028 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:04:50,029 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:04:50,029 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:04:50,029 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:04:50,029 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,029 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,029 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,029 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,029 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,030 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:04:50,031 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,032 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,033 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:04:50,034 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,035 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:04:50,036 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,037 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:04:50,038 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,039 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,040 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:04:50,041 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:04:50,042 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:04:50,042 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:04:50,042 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:04:50,042 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:04:50,043 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse21 (= |old(~a21~0)| 1)) (.cse34 (= |old(~a7~0)| 1)) (.cse17 (= ~a8~0 13)) (.cse37 (= ~a16~0 4)) (.cse42 (= ~a7~0 0)) (.cse73 (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4)))) (.cse74 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse76 (not (<= |old(~a7~0)| 0))) (.cse6 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= ~a17~0 |old(~a17~0)|)) (.cse26 (= ~a21~0 1)) (.cse9 (= ~a20~0 |old(~a20~0)|)) (.cse32 (= ~a8~0 15)) (.cse28 (= 5 ~a16~0)) (.cse35 (= |old(~a20~0)| 1)) (.cse36 (= |old(~a17~0)| 1)) (.cse57 (not (= |calculate_output_#in~input| 3))) (.cse58 (not (= |calculate_output_#in~input| 2))) (.cse59 (not (= |calculate_output_#in~input| 5))) (.cse60 (not (= |calculate_output_#in~input| 6)))) (let ((.cse20 (not (= |old(~a7~0)| |old(~a20~0)|))) (.cse8 (= ~a21~0 |old(~a21~0)|)) (.cse50 (not (<= |old(~a17~0)| 0))) (.cse14 (not (< 0 |old(~a20~0)|))) (.cse40 (= ~a17~0 ~a7~0)) (.cse25 (not (= 0 |old(~a20~0)|))) (.cse45 (<= 1 ~a7~0)) (.cse49 (<= ~a7~0 1)) (.cse1 (not (<= |old(~a7~0)| 1))) (.cse53 (not (<= 1 |old(~a7~0)|))) (.cse11 (not (<= |old(~a8~0)| 13))) (.cse68 (= ~a17~0 1)) (.cse12 (and .cse57 .cse58 (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) .cse59 .cse60)) (.cse23 (not (= 14 |old(~a8~0)|))) (.cse27 (= 14 ~a8~0)) (.cse31 (not .cse36)) (.cse18 (not (= 6 |old(~a16~0)|))) (.cse19 (not .cse35)) (.cse56 (and .cse6 .cse7 .cse26 .cse9 .cse32 .cse28)) (.cse29 (not (= 5 |old(~a16~0)|))) (.cse61 (and .cse76 (not (<= 2 |old(~a7~0)|)))) (.cse0 (not (<= 5 |old(~a16~0)|))) (.cse62 (and (not (<= 2 |old(~a20~0)|)) (not (<= |old(~a20~0)| 0)))) (.cse63 (not (<= |old(~a8~0)| 15))) (.cse10 (= ~a16~0 |old(~a16~0)|)) (.cse66 (<= ~a8~0 15)) (.cse67 (<= 15 ~a8~0)) (.cse4 (not (< 0 |old(~a17~0)|))) (.cse16 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) .cse73 (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|))) .cse74)) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse64 (not (<= 15 |old(~a8~0)|))) (.cse15 (not (= |old(~a8~0)| 13))) (.cse75 (and .cse7 .cse26 .cse9 .cse17 .cse37 .cse42)) (.cse39 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse43 (not (= |old(~a7~0)| 0))) (.cse72 (not (<= 4 |old(~a16~0)|))) (.cse69 (<= ~a16~0 4)) (.cse46 (= ~a8~0 |old(~a8~0)|)) (.cse70 (<= 4 ~a16~0)) (.cse47 (<= ~a21~0 1)) (.cse48 (<= 1 ~a21~0)) (.cse52 (not (<= 14 |old(~a8~0)|))) (.cse44 (not (<= |old(~a21~0)| 1))) (.cse54 (not (<= 1 |old(~a21~0)|))) (.cse71 (not (<= |old(~a16~0)| 4))) (.cse55 (not (<= |old(~a8~0)| 14))) (.cse2 (not (<= |old(~a17~0)| 1))) (.cse51 (not (<= 1 |old(~a20~0)|))) (.cse3 (not (<= |old(~a20~0)| 1))) (.cse24 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse65 (not .cse34)) (.cse41 (and .cse6 .cse7 .cse26 .cse9 .cse32 .cse37)) (.cse33 (not (= 15 |old(~a8~0)|))) (.cse30 (not .cse21)) (.cse13 (not (= ~a12~0 8))) (.cse38 (not (= 4 |old(~a16~0)|))) (.cse22 (not (= 0 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (< 0 |old(~a7~0)|)) .cse4 (not (<= |old(~a21~0)| 0)) .cse5 (and .cse6 .cse7 (< 12 ~a8~0) .cse8 .cse9 .cse10 (<= ~a8~0 13)) .cse11 (not (< 12 |old(~a8~0)|)) .cse12 .cse13 .cse14) (or .cse15 .cse16 (and .cse6 .cse7 .cse8 .cse9 .cse10 .cse17) .cse18 .cse19 .cse20 .cse21 .cse13 .cse22) (or .cse23 .cse24 .cse25 .cse20 (and .cse7 .cse26 .cse9 .cse27 .cse28 (= ~a20~0 ~a7~0)) .cse29 .cse30 .cse13) (or .cse31 .cse18 (and .cse6 .cse7 .cse26 .cse9 .cse10 .cse32) .cse25 .cse12 .cse33 .cse30 .cse13 .cse34) (or .cse15 .cse35 .cse36 .cse30 (and .cse6 .cse7 .cse26 .cse9 .cse17 .cse37) .cse13 .cse38 .cse34) (or .cse15 .cse31 .cse16 .cse39 .cse25 (and .cse7 .cse8 .cse9 .cse17 .cse37 .cse40) .cse21 .cse13 .cse38) (or .cse16 .cse24 .cse25 .cse41 .cse33 .cse30 .cse13 .cse38) (or .cse15 .cse31 .cse18 .cse19 (and .cse7 .cse26 .cse9 .cse10 .cse17 .cse42) .cse30 .cse13 .cse43) (or .cse0 .cse44 (and .cse45 .cse7 .cse9 .cse10 .cse46 .cse47 .cse48 .cse49) .cse1 .cse50 .cse51 .cse3 .cse52 .cse5 .cse53 .cse54 .cse55 .cse13) (or .cse56 .cse29 .cse12 .cse33 .cse30 .cse13 .cse34 .cse22) (or .cse15 (and .cse57 .cse58 (not (= |calculate_output_#in~input| |old(~a16~0)|)) .cse59 (not (= |calculate_output_#in~input| |old(~a20~0)|)) .cse60) (and .cse6 .cse7 .cse8 .cse9 .cse17 .cse37) .cse19 .cse20 .cse21 .cse13 .cse38 .cse22) (or (and (or .cse61 .cse62 (not (<= |old(~a16~0)| 6)) .cse63 (not (< 5 |old(~a16~0)|)) .cse44 .cse16 .cse64 .cse54 .cse50 .cse13) (or .cse15 .cse31 .cse65 .cse19 .cse12 .cse13 .cse38)) (and .cse6 .cse9 .cse10 (or (and .cse7 .cse47 .cse48 .cse66 (or (<= 2 ~a20~0) (<= ~a20~0 0)) .cse67) (and .cse8 .cse17 .cse37 .cse68)))) (or .cse61 .cse0 .cse63 .cse44 .cse50 .cse3 .cse16 .cse5 .cse64 .cse54 (and .cse6 .cse7 .cse9 .cse10 .cse47 .cse48 .cse66 .cse67) .cse13 .cse14) (or (and .cse7 .cse26 .cse9 .cse27 .cse37 .cse40) .cse23 .cse39 .cse24 .cse30 .cse13 .cse38 .cse22) (or (and .cse6 .cse7 .cse26 .cse9 .cse27 .cse37) .cse23 .cse65 .cse25 .cse30 .cse13 .cse38 .cse22) (or .cse44 (not (<= 1 |old(~a17~0)|)) (and .cse45 .cse7 .cse9 .cse69 .cse46 .cse70 .cse47 .cse48 .cse49) .cse1 .cse71 (not (<= 13 |old(~a8~0)|)) .cse2 .cse51 .cse3 .cse72 .cse53 .cse54 .cse11 .cse13) (or .cse31 .cse35 (and .cse57 .cse58 .cse73 .cse59 .cse74 .cse60) (and .cse6 .cse26 .cse9 .cse10 .cse32 .cse68) .cse33 .cse30 .cse13 .cse38 .cse34) (or .cse19 .cse41 .cse12 .cse33 .cse30 .cse13 .cse38 .cse34 .cse22) (or .cse23 .cse24 .cse65 (and .cse6 .cse7 .cse26 .cse9 .cse27 .cse28) .cse29 .cse30 .cse13 .cse22) (or .cse15 .cse31 .cse75 .cse19 .cse30 .cse13 .cse43 .cse38) (or (and .cse7 .cse26 .cse9 .cse32 .cse28 .cse42) .cse31 .cse16 .cse29 .cse33 .cse30 .cse13 .cse43) (or (and .cse7 .cse6 .cse26 (= ~a16~0 6) .cse32 (= ~a20~0 1)) .cse16 .cse18 .cse19 .cse36 .cse33 .cse30 .cse13 .cse34) (or .cse56 .cse24 .cse65 .cse29 .cse33 .cse30 .cse13 .cse22) (or .cse61 .cse0 .cse62 .cse63 .cse44 .cse2 (and .cse6 (< 0 ~a17~0) .cse9 .cse10 (<= ~a17~0 1) .cse47 .cse48 .cse66 .cse67) .cse4 .cse16 .cse5 .cse64 .cse54 .cse13) (or .cse15 .cse75 .cse39 .cse30 .cse13 .cse43 .cse38) (or .cse72 (and .cse6 .cse7 .cse9 .cse69 .cse46 .cse70 .cse47 .cse48) .cse52 .cse76 .cse44 .cse54 .cse71 .cse55 .cse2 .cse51 .cse13 .cse3) (or .cse24 .cse65 .cse41 .cse33 .cse30 .cse13 .cse38 .cse22)))) [2020-10-13 06:04:50,043 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:04:50,043 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,043 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,043 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,043 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,043 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:04:50,043 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,043 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,044 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:04:50,045 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:04:50,046 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:04:50,047 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:04:50,047 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:04:50,047 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-13 06:04:50,047 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:04:50,047 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:04:50,047 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:04:50,047 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:04:50,047 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse30 (= ~a7~0 1)) (.cse35 (= 5 main_~input~0)) (.cse36 (= 6 main_~input~0)) (.cse38 (= 3 main_~input~0)) (.cse39 (= 2 main_~input~0)) (.cse29 (= ~a17~0 1)) (.cse14 (= ~a21~0 1)) (.cse46 (<= ~a7~0 0))) (let ((.cse20 (or (< 1 ~a7~0) .cse46)) (.cse22 (<= ~a8~0 15)) (.cse23 (<= 15 ~a8~0)) (.cse1 (<= 13 ~a8~0)) (.cse3 (<= 1 ~a17~0)) (.cse11 (<= ~a8~0 13)) (.cse0 (<= 1 ~a7~0)) (.cse18 (<= ~a16~0 5)) (.cse24 (<= ~a17~0 0)) (.cse21 (<= 5 ~a16~0)) (.cse10 (<= ~a7~0 1)) (.cse17 (= ~a20~0 ~a7~0)) (.cse12 (= ~a20~0 0)) (.cse40 (not .cse14)) (.cse32 (= ~a8~0 13)) (.cse43 (= ~a7~0 0)) (.cse37 (= ~a16~0 main_~input~0)) (.cse25 (= ~a16~0 6)) (.cse42 (not .cse29)) (.cse19 (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)))) (.cse41 (= ~a20~0 1)) (.cse13 (= ~a20~0 ~a17~0)) (.cse15 (= 14 ~a8~0)) (.cse33 (= ~a16~0 4)) (.cse34 (= ~a17~0 ~a7~0)) (.cse26 (or .cse35 .cse36 (= main_~input~0 4) .cse38 (= main_~input~0 1) .cse39)) (.cse27 (= ~a8~0 15)) (.cse28 (not .cse30)) (.cse16 (= 5 ~a16~0)) (.cse31 (= ~a17~0 0)) (.cse2 (<= 1 ~a20~0)) (.cse44 (<= 14 ~a8~0)) (.cse45 (<= ~a8~0 14)) (.cse4 (<= ~a16~0 4)) (.cse5 (<= 4 ~a16~0)) (.cse7 (<= ~a21~0 1)) (.cse8 (<= ~a20~0 1)) (.cse6 (<= ~a17~0 1)) (.cse9 (<= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse3 .cse18 (or (< 1 ~a20~0) (<= ~a20~0 0)) .cse19 .cse20 .cse7 .cse6 .cse9 .cse21 .cse22 .cse23) (and (<= ~a16~0 6) (<= 6 ~a16~0) .cse19 .cse24 .cse20 .cse7 .cse9 .cse22 .cse23) (not (= |old(~a20~0)| 1)) (and .cse12 .cse14 .cse25 .cse26 .cse27 .cse28 .cse29) (and .cse13 .cse14 .cse30 .cse27 .cse16 .cse31) (and .cse13 .cse26 .cse32 .cse33 .cse34 .cse29) (not (= |old(~a21~0)| 1)) (and (or .cse35 (= ~a20~0 main_~input~0) .cse36 .cse37 .cse38 .cse39) .cse40 .cse32 .cse41 .cse33 .cse17 .cse31) (and .cse2 .cse18 .cse19 .cse24 .cse20 .cse7 .cse8 .cse9 .cse21 .cse22 .cse23) (and .cse14 .cse42 .cse32 .cse33 .cse28 (not .cse41)) (and .cse13 .cse14 .cse30 .cse27 .cse33 .cse31) (and .cse0 .cse1 .cse2 .cse3 .cse18 .cse26 (<= ~a21~0 0) .cse6 .cse8 .cse21 .cse10 .cse11) (and .cse12 .cse13 .cse14 .cse19 .cse27 .cse33) (not (= 5 |old(~a16~0)|)) (and .cse14 .cse32 .cse33 .cse34 .cse43) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse0 .cse2 .cse44 .cse45 .cse18 .cse24 .cse7 .cse8 .cse9 .cse21 .cse10) (and .cse25 .cse19 .cse40 .cse32 .cse41 .cse17 .cse31) (and .cse12 .cse14 .cse30 .cse15 .cse33 .cse31) (and .cse12 .cse19 .cse40 .cse32 .cse33 .cse34 .cse29) (and (= ~a17~0 |old(~a17~0)|) .cse14 .cse19 .cse27 .cse16 .cse43) (and .cse14 .cse25 .cse32 .cse41 .cse43 .cse29) (and .cse14 .cse32 .cse41 .cse33 .cse43 .cse29) (not (= |old(~a17~0)| 1)) (and (= ~a21~0 ~a17~0) (not .cse13) (or .cse35 .cse36 .cse37 .cse38 (= ~a17~0 main_~input~0) .cse39) (not .cse34) .cse27 .cse33 .cse29) (and .cse14 .cse26 .cse27 .cse41 .cse33 .cse28 .cse31) (and .cse14 .cse25 .cse42 .cse19 .cse27 .cse41 .cse28) (and .cse13 .cse14 .cse30 .cse15 .cse16 .cse31) (and .cse13 .cse14 .cse15 .cse33 .cse34 .cse31) (and .cse14 .cse26 .cse27 .cse28 .cse16 .cse31) (and .cse2 .cse44 .cse45 .cse4 .cse5 .cse46 .cse7 .cse8 .cse6 .cse9)))) [2020-10-13 06:04:50,048 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:04:50,048 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:04:50,048 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse39 (<= ~a7~0 0)) (.cse28 (= ~a7~0 1)) (.cse2 (= ~a21~0 1)) (.cse12 (= ~a17~0 1))) (let ((.cse17 (<= 1 ~a7~0)) (.cse32 (<= 13 ~a8~0)) (.cse27 (<= ~a7~0 1)) (.cse37 (<= ~a8~0 13)) (.cse13 (not .cse12)) (.cse0 (= ~a20~0 0)) (.cse38 (= ~a16~0 6)) (.cse6 (not .cse2)) (.cse5 (= ~a20~0 ~a7~0)) (.cse7 (= ~a8~0 13)) (.cse22 (<= ~a17~0 0)) (.cse8 (= ~a20~0 1)) (.cse14 (not .cse28)) (.cse15 (= ~a8~0 15)) (.cse4 (= 5 ~a16~0)) (.cse16 (= ~a7~0 0)) (.cse1 (= ~a20~0 ~a17~0)) (.cse3 (= 14 ~a8~0)) (.cse9 (= ~a16~0 4)) (.cse11 (= ~a17~0 ~a7~0)) (.cse10 (= ~a17~0 0)) (.cse33 (<= 1 ~a17~0)) (.cse21 (<= ~a16~0 5)) (.cse29 (or (< 1 ~a7~0) .cse39)) (.cse26 (<= 5 ~a16~0)) (.cse30 (<= ~a8~0 15)) (.cse31 (<= 15 ~a8~0)) (.cse18 (<= 1 ~a20~0)) (.cse19 (<= 14 ~a8~0)) (.cse20 (<= ~a8~0 14)) (.cse34 (<= ~a16~0 4)) (.cse35 (<= 4 ~a16~0)) (.cse23 (<= ~a21~0 1)) (.cse24 (<= ~a20~0 1)) (.cse36 (<= ~a17~0 1)) (.cse25 (<= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse9 .cse5 .cse10) (and .cse0 .cse6 .cse7 .cse9 .cse11 .cse12) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (and .cse2 .cse13 .cse7 .cse9 .cse14 (not .cse8)) (and .cse2 .cse15 .cse14 .cse4 .cse10) (not (= 5 |old(~a16~0)|)) (and .cse2 .cse7 .cse9 .cse11 .cse16) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27) (and .cse0 .cse2 .cse28 .cse3 .cse9 .cse10) (and (<= ~a16~0 6) (<= 6 ~a16~0) .cse22 .cse29 .cse23 .cse25 .cse30 .cse31) (and .cse17 .cse32 .cse18 .cse33 .cse34 .cse35 .cse36 .cse24 .cse27 .cse37) (and .cse17 .cse32 .cse18 .cse33 .cse21 (<= ~a21~0 0) .cse24 .cse36 .cse26 .cse27 .cse37) (and .cse2 .cse38 .cse13 .cse15 .cse8 .cse14) (and .cse1 .cse2 .cse15 .cse9 .cse10) (and .cse2 .cse38 .cse7 .cse8 .cse16 .cse12) (and .cse0 .cse2 .cse38 .cse15 .cse14 .cse12) (and .cse1 .cse2 .cse15 .cse4 .cse10) (and .cse38 .cse6 .cse7 .cse8 .cse5 .cse10) (and (= ~a21~0 ~a17~0) (not .cse1) (not .cse11) .cse15 .cse9 .cse12) (and .cse2 .cse7 .cse8 .cse9 .cse16 .cse12) (not (= |old(~a17~0)| 1)) (and .cse18 .cse21 .cse22 .cse29 .cse23 .cse24 .cse25 .cse26 .cse30 .cse31) (and .cse2 .cse15 .cse8 .cse9 .cse14 .cse10) (and .cse1 .cse2 .cse28 .cse3 .cse4 .cse10) (and (= ~a17~0 |old(~a17~0)|) .cse2 .cse15 .cse4 .cse16) (and .cse1 .cse2 .cse3 .cse9 .cse11 .cse10) (and .cse33 .cse21 (or (< 1 ~a20~0) (<= ~a20~0 0)) .cse29 .cse23 .cse36 .cse25 .cse26 .cse30 .cse31) (and .cse18 .cse19 .cse20 .cse34 .cse35 .cse39 .cse23 .cse24 .cse36 .cse25)))) [2020-10-13 06:04:50,048 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:04:50,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:04:50 BoogieIcfgContainer [2020-10-13 06:04:50,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:04:50,085 INFO L168 Benchmark]: Toolchain (without parser) took 168292.49 ms. Allocated memory was 139.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 100.6 MB in the beginning and 1.0 GB in the end (delta: -943.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:04:50,085 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:04:50,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.70 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 167.8 MB in the end (delta: -67.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:50,086 INFO L168 Benchmark]: Boogie Preprocessor took 132.46 ms. Allocated memory is still 203.9 MB. Free memory was 167.8 MB in the beginning and 162.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:50,086 INFO L168 Benchmark]: RCFGBuilder took 1399.04 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 162.8 MB in the beginning and 176.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:50,087 INFO L168 Benchmark]: TraceAbstraction took 166011.43 ms. Allocated memory was 236.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 176.1 MB in the beginning and 1.0 GB in the end (delta: -868.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:04:50,088 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.70 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 167.8 MB in the end (delta: -67.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.46 ms. Allocated memory is still 203.9 MB. Free memory was 167.8 MB in the beginning and 162.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1399.04 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 162.8 MB in the beginning and 176.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 166011.43 ms. Allocated memory was 236.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 176.1 MB in the beginning and 1.0 GB in the end (delta: -868.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 557]: 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: ((((((((((((((((((((((((((((((((((((a20 == 0 && a20 == a17) && a21 == 1) && 14 == a8) && 5 == a16) && a20 == a7) || (((((!(a21 == 1) && a8 == 13) && a20 == 1) && a16 == 4) && a20 == a7) && a17 == 0)) || (((((a20 == 0 && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == a7) && a17 == 1)) || !(\old(a20) == 1)) || !(\old(a21) == 1)) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || !(5 == \old(a16))) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a7 == 0)) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8)) || ((((((((((1 <= a7 && 1 <= a20) && 14 <= a8) && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && a20 <= 1) && 1 <= a21) && 5 <= a16) && a7 <= 1)) || (((((a20 == 0 && a21 == 1) && a7 == 1) && 14 == a8) && a16 == 4) && a17 == 0)) || (((((((a16 <= 6 && 6 <= a16) && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a20 <= 1) && a7 <= 1) && a8 <= 13)) || ((((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 5) && a21 <= 0) && a20 <= 1) && a17 <= 1) && 5 <= a16) && a7 <= 1) && a8 <= 13)) || (((((a21 == 1 && a16 == 6) && !(a17 == 1)) && a8 == 15) && a20 == 1) && !(a7 == 1))) || ((((a20 == a17 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && a8 == 13) && a20 == 1) && a7 == 0) && a17 == 1)) || (((((a20 == 0 && a21 == 1) && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && 5 == a16) && a17 == 0)) || (((((a16 == 6 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a20 == a7) && a17 == 0)) || (((((a21 == a17 && !(a20 == a17)) && !(a17 == a7)) && a8 == 15) && a16 == 4) && a17 == 1)) || (((((a21 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || !(\old(a17) == 1)) || (((((((((1 <= a20 && a16 <= 5) && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || (((((a21 == 1 && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1)) && a17 == 0)) || (((((a20 == a17 && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16) && a17 == 0)) || ((((a17 == \old(a17) && a21 == 1) && a8 == 15) && 5 == a16) && a7 == 0)) || (((((a20 == a17 && a21 == 1) && 14 == a8) && a16 == 4) && a17 == a7) && a17 == 0)) || (((((((((1 <= a17 && a16 <= 5) && (1 < a20 || a20 <= 0)) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a17 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || (((((((((1 <= a20 && 14 <= a8) && a8 <= 14) && a16 <= 4) && 4 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 155.5s, OverallIterations: 32, TraceHistogramMax: 7, AutomataDifference: 62.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 9411 SDslu, 1135 SDs, 0 SdLazy, 22026 SolverSat, 1290 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 804 GetRequests, 363 SyntacticMatches, 29 SemanticMatches, 412 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 47.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=608occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 32 MinimizatonAttempts, 232 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 214 PreInvPairs, 270 NumberOfFragments, 4028 HoareAnnotationTreeSize, 214 FomulaSimplifications, 1438 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4153 FormulaSimplificationTreeSizeReductionInter, 9.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 84.2s InterpolantComputationTime, 8472 NumberOfCodeBlocks, 8472 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 8440 ConstructedInterpolants, 0 QuantifiedInterpolants, 23418554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 1 PerfectInterpolantSequences, 8321/8434 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...