/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:59:07,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:59:07,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:59:07,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:59:07,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:59:07,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:59:07,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:59:07,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:59:07,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:59:07,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:59:07,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:59:07,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:59:07,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:59:07,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:59:07,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:59:07,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:59:07,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:59:07,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:59:07,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:59:07,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:59:07,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:59:07,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:59:07,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:59:07,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:59:07,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:59:07,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:59:07,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:59:07,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:59:07,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:59:07,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:59:07,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:59:07,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:59:07,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:59:07,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:59:07,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:59:07,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:59:07,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:59:07,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:59:07,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:59:07,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:59:07,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:59:07,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 13:59:07,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:59:07,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:59:07,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:59:07,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:59:07,501 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:59:07,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:59:07,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:59:07,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:59:07,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:59:07,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:59:07,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:59:07,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:59:07,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:59:07,503 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:59:07,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:59:07,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:59:07,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:59:07,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:59:07,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:59:07,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:59:07,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:59:07,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:59:07,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:59:07,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:59:07,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:59:07,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:59:07,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:59:07,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:59:07,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:59:07,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 13:59:07,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:59:07,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:59:07,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:59:07,837 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:59:07,838 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:59:07,839 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label35.c [2020-10-12 13:59:07,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46fcbc19c/1f17e5d542f64389b501fd42c06b1434/FLAG4b6c5a2dd [2020-10-12 13:59:08,425 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:59:08,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label35.c [2020-10-12 13:59:08,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46fcbc19c/1f17e5d542f64389b501fd42c06b1434/FLAG4b6c5a2dd [2020-10-12 13:59:08,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46fcbc19c/1f17e5d542f64389b501fd42c06b1434 [2020-10-12 13:59:08,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:59:08,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:59:08,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:59:08,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:59:08,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:59:08,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:59:08" (1/1) ... [2020-10-12 13:59:08,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92e95d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:08, skipping insertion in model container [2020-10-12 13:59:08,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:59:08" (1/1) ... [2020-10-12 13:59:08,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:59:08,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:59:09,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:59:09,425 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:59:09,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:59:09,596 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:59:09,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09 WrapperNode [2020-10-12 13:59:09,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:59:09,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:59:09,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:59:09,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:59:09,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (1/1) ... [2020-10-12 13:59:09,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (1/1) ... [2020-10-12 13:59:09,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (1/1) ... [2020-10-12 13:59:09,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (1/1) ... [2020-10-12 13:59:09,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (1/1) ... [2020-10-12 13:59:09,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (1/1) ... [2020-10-12 13:59:09,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (1/1) ... [2020-10-12 13:59:09,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:59:09,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:59:09,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:59:09,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:59:09,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:59:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:59:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:59:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:59:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:59:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:59:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:59:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:59:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:59:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:59:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:59:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:59:11,279 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:59:11,280 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:59:11,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:59:11 BoogieIcfgContainer [2020-10-12 13:59:11,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:59:11,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:59:11,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:59:11,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:59:11,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:59:08" (1/3) ... [2020-10-12 13:59:11,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634c1991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:59:11, skipping insertion in model container [2020-10-12 13:59:11,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:09" (2/3) ... [2020-10-12 13:59:11,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634c1991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:59:11, skipping insertion in model container [2020-10-12 13:59:11,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:59:11" (3/3) ... [2020-10-12 13:59:11,298 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label35.c [2020-10-12 13:59:11,312 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:59:11,321 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:59:11,338 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:59:11,365 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:59:11,366 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:59:11,366 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:59:11,366 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:59:11,366 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:59:11,367 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:59:11,367 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:59:11,367 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:59:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 13:59:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 13:59:11,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:11,402 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] [2020-10-12 13:59:11,402 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:11,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:11,410 INFO L82 PathProgramCache]: Analyzing trace with hash -504999173, now seen corresponding path program 1 times [2020-10-12 13:59:11,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:11,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346112540] [2020-10-12 13:59:11,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:12,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:12,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 13:59:12,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:12,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-12 13:59:12,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:59:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 13:59:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 13:59:12,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:12,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:12,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:12,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:12,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:12,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:59:12,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:59:12,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:59:12,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346112540] [2020-10-12 13:59:12,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:59:12,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 13:59:12,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165089041] [2020-10-12 13:59:12,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:59:12,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:12,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:59:12,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:59:12,211 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-12 13:59:14,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:14,938 INFO L93 Difference]: Finished difference Result 886 states and 1613 transitions. [2020-10-12 13:59:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:59:14,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-10-12 13:59:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:14,986 INFO L225 Difference]: With dead ends: 886 [2020-10-12 13:59:14,987 INFO L226 Difference]: Without dead ends: 564 [2020-10-12 13:59:15,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:15,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-12 13:59:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2020-10-12 13:59:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-12 13:59:15,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 906 transitions. [2020-10-12 13:59:15,156 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 906 transitions. Word has length 50 [2020-10-12 13:59:15,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:15,157 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 906 transitions. [2020-10-12 13:59:15,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:59:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 906 transitions. [2020-10-12 13:59:15,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-12 13:59:15,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:15,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:15,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:59:15,166 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:15,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:15,167 INFO L82 PathProgramCache]: Analyzing trace with hash -632591818, now seen corresponding path program 1 times [2020-10-12 13:59:15,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:15,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761002561] [2020-10-12 13:59:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:15,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:16,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:16,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:16,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 13:59:16,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:59:16,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1549 [2020-10-12 13:59:16,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:59:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 13:59:16,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:59:16,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:16,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:16,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:16,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:16,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:16,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:59:16,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:16,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:59:16,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 13:59:16,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:16,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:17,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:17,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:59:17,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 13:59:17,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:59:17,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:17,079 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:59:17,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761002561] [2020-10-12 13:59:17,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:59:17,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:59:17,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522852085] [2020-10-12 13:59:17,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:17,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:17,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:17,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:17,083 INFO L87 Difference]: Start difference. First operand 558 states and 906 transitions. Second operand 7 states. [2020-10-12 13:59:18,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:18,796 INFO L93 Difference]: Finished difference Result 1314 states and 2156 transitions. [2020-10-12 13:59:18,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:59:18,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-10-12 13:59:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:18,804 INFO L225 Difference]: With dead ends: 1314 [2020-10-12 13:59:18,804 INFO L226 Difference]: Without dead ends: 762 [2020-10-12 13:59:18,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:59:18,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-12 13:59:18,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 564. [2020-10-12 13:59:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-12 13:59:18,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 859 transitions. [2020-10-12 13:59:18,838 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 859 transitions. Word has length 124 [2020-10-12 13:59:18,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:18,839 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 859 transitions. [2020-10-12 13:59:18,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 859 transitions. [2020-10-12 13:59:18,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-12 13:59:18,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:18,844 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, 2, 2, 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] [2020-10-12 13:59:18,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:59:18,844 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:18,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:18,845 INFO L82 PathProgramCache]: Analyzing trace with hash -2019048736, now seen corresponding path program 1 times [2020-10-12 13:59:18,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:18,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440904384] [2020-10-12 13:59:18,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:18,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:18,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:19,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:19,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:21,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:23,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:23,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-12 13:59:23,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:59:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4460 [2020-10-12 13:59:23,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:59:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:59:23,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:23,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:23,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:23,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:23,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:23,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:59:23,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:59:23,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:23,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:23,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:23,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:23,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 13:59:23,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:23,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 13:59:23,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:23,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:23,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:23,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 13:59:23,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:23,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 13:59:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:23,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:23,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:23,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:59:23,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:23,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 13:59:23,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:23,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:23,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:59:23,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:23,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 86 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 13:59:23,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440904384] [2020-10-12 13:59:23,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:23,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:23,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409143343] [2020-10-12 13:59:23,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:23,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:23,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:23,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:23,696 INFO L87 Difference]: Start difference. First operand 564 states and 859 transitions. Second operand 7 states. [2020-10-12 13:59:25,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:25,613 INFO L93 Difference]: Finished difference Result 1506 states and 2299 transitions. [2020-10-12 13:59:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:59:25,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-10-12 13:59:25,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:25,620 INFO L225 Difference]: With dead ends: 1506 [2020-10-12 13:59:25,620 INFO L226 Difference]: Without dead ends: 948 [2020-10-12 13:59:25,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:59:25,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2020-10-12 13:59:25,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 938. [2020-10-12 13:59:25,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-10-12 13:59:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1319 transitions. [2020-10-12 13:59:25,654 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1319 transitions. Word has length 193 [2020-10-12 13:59:25,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:25,655 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1319 transitions. [2020-10-12 13:59:25,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1319 transitions. [2020-10-12 13:59:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-12 13:59:25,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:25,659 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, 2, 2, 2, 2, 2, 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] [2020-10-12 13:59:25,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:59:25,659 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:25,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:25,660 INFO L82 PathProgramCache]: Analyzing trace with hash -72698155, now seen corresponding path program 1 times [2020-10-12 13:59:25,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:25,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181435274] [2020-10-12 13:59:25,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:25,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:25,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:25,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:28,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:29,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:29,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-12 13:59:29,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:59:29,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3762 [2020-10-12 13:59:29,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:59:29,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 13:59:29,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:29,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:29,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:29,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:29,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:29,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:29,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:59:29,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:59:29,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:29,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:29,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:29,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:29,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:59:29,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:29,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 13:59:29,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:59:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 13:59:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:29,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:29,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:29,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:59:29,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:29,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:59:29,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:59:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:29,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 86 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 13:59:29,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181435274] [2020-10-12 13:59:29,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:29,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:29,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523913364] [2020-10-12 13:59:29,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:29,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:29,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:29,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:29,790 INFO L87 Difference]: Start difference. First operand 938 states and 1319 transitions. Second operand 7 states. [2020-10-12 13:59:31,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:31,648 INFO L93 Difference]: Finished difference Result 2454 states and 3474 transitions. [2020-10-12 13:59:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:59:31,648 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-10-12 13:59:31,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:31,658 INFO L225 Difference]: With dead ends: 2454 [2020-10-12 13:59:31,658 INFO L226 Difference]: Without dead ends: 1522 [2020-10-12 13:59:31,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:59:31,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2020-10-12 13:59:31,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1500. [2020-10-12 13:59:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1500 states. [2020-10-12 13:59:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1965 transitions. [2020-10-12 13:59:31,713 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1965 transitions. Word has length 196 [2020-10-12 13:59:31,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:31,714 INFO L479 AbstractCegarLoop]: Abstraction has 1500 states and 1965 transitions. [2020-10-12 13:59:31,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:31,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1965 transitions. [2020-10-12 13:59:31,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-12 13:59:31,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:31,718 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:59:31,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:59:31,719 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:31,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:31,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1576841346, now seen corresponding path program 1 times [2020-10-12 13:59:31,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:31,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658584533] [2020-10-12 13:59:31,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:32,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:32,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:32,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:34,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:34,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-12 13:59:34,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:59:34,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2622 [2020-10-12 13:59:34,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:59:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:59:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 13:59:34,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:34,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:34,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:34,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:34,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:34,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:34,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:59:34,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:34,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:34,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:34,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:59:34,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:34,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:34,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:34,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:59:34,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:34,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 13:59:34,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:34,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 13:59:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:34,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 13:59:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:34,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:34,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:34,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:59:34,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:34,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 13:59:34,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:59:34,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,114 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 87 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 13:59:35,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658584533] [2020-10-12 13:59:35,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:35,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:35,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908988555] [2020-10-12 13:59:35,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:59:35,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:35,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:59:35,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:59:35,117 INFO L87 Difference]: Start difference. First operand 1500 states and 1965 transitions. Second operand 8 states. [2020-10-12 13:59:37,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:37,292 INFO L93 Difference]: Finished difference Result 2868 states and 4006 transitions. [2020-10-12 13:59:37,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 13:59:37,293 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 217 [2020-10-12 13:59:37,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:37,307 INFO L225 Difference]: With dead ends: 2868 [2020-10-12 13:59:37,308 INFO L226 Difference]: Without dead ends: 1924 [2020-10-12 13:59:37,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-12 13:59:37,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2020-10-12 13:59:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1874. [2020-10-12 13:59:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-10-12 13:59:37,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2392 transitions. [2020-10-12 13:59:37,382 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2392 transitions. Word has length 217 [2020-10-12 13:59:37,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:37,383 INFO L479 AbstractCegarLoop]: Abstraction has 1874 states and 2392 transitions. [2020-10-12 13:59:37,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:59:37,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2392 transitions. [2020-10-12 13:59:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-12 13:59:37,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:37,393 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 13:59:37,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:59:37,393 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:37,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:37,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1301748908, now seen corresponding path program 1 times [2020-10-12 13:59:37,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:37,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26170712] [2020-10-12 13:59:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:37,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:37,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:37,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:37,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:39,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:39,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:41,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:41,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-12 13:59:41,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:59:41,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4387 [2020-10-12 13:59:41,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 13:59:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-12 13:59:41,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:41,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:41,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:41,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:41,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:41,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:41,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 13:59:41,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:41,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:41,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:41,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:41,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:41,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:41,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:42,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:42,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:59:42,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 13:59:42,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 13:59:42,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:42,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 13:59:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:42,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:42,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:42,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:42,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:42,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:42,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-12 13:59:42,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:42,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:42,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:42,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-12 13:59:42,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:42,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-12 13:59:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:42,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:42,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:59:42,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:42,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 13:59:42,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:42,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:42,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:42,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:59:42,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,172 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 281 proven. 73 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 13:59:43,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26170712] [2020-10-12 13:59:43,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:43,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:59:43,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605996752] [2020-10-12 13:59:43,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:59:43,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:43,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:59:43,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:59:43,175 INFO L87 Difference]: Start difference. First operand 1874 states and 2392 transitions. Second operand 8 states. [2020-10-12 13:59:45,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:45,382 INFO L93 Difference]: Finished difference Result 4160 states and 5495 transitions. [2020-10-12 13:59:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 13:59:45,382 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 348 [2020-10-12 13:59:45,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:45,392 INFO L225 Difference]: With dead ends: 4160 [2020-10-12 13:59:45,393 INFO L226 Difference]: Without dead ends: 1904 [2020-10-12 13:59:45,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-12 13:59:45,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2020-10-12 13:59:45,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1874. [2020-10-12 13:59:45,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-10-12 13:59:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2155 transitions. [2020-10-12 13:59:45,449 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2155 transitions. Word has length 348 [2020-10-12 13:59:45,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:45,450 INFO L479 AbstractCegarLoop]: Abstraction has 1874 states and 2155 transitions. [2020-10-12 13:59:45,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:59:45,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2155 transitions. [2020-10-12 13:59:45,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2020-10-12 13:59:45,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:45,459 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:45,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:59:45,460 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:45,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:45,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1735484645, now seen corresponding path program 1 times [2020-10-12 13:59:45,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:45,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442557340] [2020-10-12 13:59:45,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:45,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:45,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:45,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:46,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:48,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:49,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:50,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:50,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 452 [2020-10-12 13:59:50,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:59:50,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 13:59:50,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:50,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 13:59:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:59:50,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:50,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:50,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:50,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:50,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:59:50,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:50,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:50,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:50,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:50,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:50,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:50,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:59:50,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:50,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:50,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:50,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:50,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:50,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:50,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:50,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:50,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:50,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 13:59:50,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:59:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:50,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:50,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:50,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:50,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:50,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:59:50,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:50,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 13:59:50,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:51,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:51,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:51,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 13:59:51,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 48 [2020-10-12 13:59:51,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-12 13:59:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:51,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:51,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:51,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:59:51,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:51,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 13:59:51,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:51,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:51,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:59:51,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 577 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-12 13:59:51,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442557340] [2020-10-12 13:59:51,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:51,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:59:51,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712002853] [2020-10-12 13:59:51,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:59:51,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:51,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:59:51,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:59:51,377 INFO L87 Difference]: Start difference. First operand 1874 states and 2155 transitions. Second operand 8 states. [2020-10-12 13:59:53,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:53,188 INFO L93 Difference]: Finished difference Result 4148 states and 4999 transitions. [2020-10-12 13:59:53,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:59:53,189 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 436 [2020-10-12 13:59:53,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:53,201 INFO L225 Difference]: With dead ends: 4148 [2020-10-12 13:59:53,202 INFO L226 Difference]: Without dead ends: 2454 [2020-10-12 13:59:53,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:59:53,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2020-10-12 13:59:53,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 2252. [2020-10-12 13:59:53,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2252 states. [2020-10-12 13:59:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 2506 transitions. [2020-10-12 13:59:53,263 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 2506 transitions. Word has length 436 [2020-10-12 13:59:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:53,263 INFO L479 AbstractCegarLoop]: Abstraction has 2252 states and 2506 transitions. [2020-10-12 13:59:53,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:59:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 2506 transitions. [2020-10-12 13:59:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2020-10-12 13:59:53,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:53,274 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:53,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:59:53,274 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:53,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:53,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1744253922, now seen corresponding path program 1 times [2020-10-12 13:59:53,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:53,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519028984] [2020-10-12 13:59:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:53,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:53,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:53,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:53,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:58,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:58,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 465 [2020-10-12 13:59:58,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:59:58,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 13:59:58,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:59:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:59:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-12 13:59:58,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:58,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:58,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:58,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:58,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:58,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:58,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 13:59:58,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:58,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:58,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:58,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:59:58,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:58,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:58,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:58,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:58,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:58,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 13:59:58,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:58,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:58,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:58,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 13:59:58,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:58,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:58,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:58,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:58,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 13:59:58,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:58,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-12 13:59:58,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:58,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:58,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:58,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-12 13:59:58,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:59,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-12 13:59:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:59,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:59,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:59,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:59:59,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:59,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:59:59,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 13:59:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:59,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:59,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2020-10-12 13:59:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:59,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:59,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:59,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:59:59,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 13:59:59,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 13:59:59,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:59,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 181 proven. 397 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-12 13:59:59,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519028984] [2020-10-12 13:59:59,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:59,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:59:59,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524779841] [2020-10-12 13:59:59,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:59:59,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:59,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:59:59,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:59:59,495 INFO L87 Difference]: Start difference. First operand 2252 states and 2506 transitions. Second operand 8 states. [2020-10-12 14:00:00,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:00,914 INFO L93 Difference]: Finished difference Result 4328 states and 4847 transitions. [2020-10-12 14:00:00,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:00:00,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 449 [2020-10-12 14:00:00,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:00,925 INFO L225 Difference]: With dead ends: 4328 [2020-10-12 14:00:00,925 INFO L226 Difference]: Without dead ends: 2448 [2020-10-12 14:00:00,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:00:00,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2020-10-12 14:00:00,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2250. [2020-10-12 14:00:00,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-10-12 14:00:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2498 transitions. [2020-10-12 14:00:00,982 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2498 transitions. Word has length 449 [2020-10-12 14:00:00,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:00,983 INFO L479 AbstractCegarLoop]: Abstraction has 2250 states and 2498 transitions. [2020-10-12 14:00:00,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:00:00,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2498 transitions. [2020-10-12 14:00:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-10-12 14:00:00,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:00,991 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:00,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:00:00,992 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:00,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:00,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1082748489, now seen corresponding path program 1 times [2020-10-12 14:00:00,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:00,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030739633] [2020-10-12 14:00:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:01,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:03,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:06,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:06,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 688 [2020-10-12 14:00:06,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:00:06,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5111 [2020-10-12 14:00:06,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:00:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 478 [2020-10-12 14:00:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:00:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:06,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:06,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:06,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:06,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:06,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:06,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:00:06,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:06,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:06,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:06,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:06,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:06,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:06,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:06,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:00:06,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:06,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:06,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:06,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:06,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:06,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:00:06,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:06,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:06,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:06,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:06,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:06,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:00:06,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:06,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:06,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:00:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:06,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:06,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:06,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:00:06,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:06,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 14:00:06,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:00:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:06,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:00:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:06,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:06,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:06,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:00:06,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 14:00:06,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:00:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:00:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:06,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2020-10-12 14:00:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:06,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:06,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:07,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:07,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:00:07,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-12 14:00:07,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:00:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:07,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1612 backedges. 905 proven. 50 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2020-10-12 14:00:07,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030739633] [2020-10-12 14:00:07,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:07,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:00:07,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425497463] [2020-10-12 14:00:07,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:00:07,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:07,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:00:07,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:00:07,749 INFO L87 Difference]: Start difference. First operand 2250 states and 2498 transitions. Second operand 9 states. [2020-10-12 14:00:11,381 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-12 14:00:11,805 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-10-12 14:00:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:13,920 INFO L93 Difference]: Finished difference Result 5151 states and 5924 transitions. [2020-10-12 14:00:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 14:00:13,921 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 668 [2020-10-12 14:00:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:13,935 INFO L225 Difference]: With dead ends: 5151 [2020-10-12 14:00:13,935 INFO L226 Difference]: Without dead ends: 3240 [2020-10-12 14:00:13,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2020-10-12 14:00:13,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2020-10-12 14:00:14,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 3006. [2020-10-12 14:00:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3006 states. [2020-10-12 14:00:14,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 3430 transitions. [2020-10-12 14:00:14,018 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 3430 transitions. Word has length 668 [2020-10-12 14:00:14,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:14,019 INFO L479 AbstractCegarLoop]: Abstraction has 3006 states and 3430 transitions. [2020-10-12 14:00:14,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:00:14,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 3430 transitions. [2020-10-12 14:00:14,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2020-10-12 14:00:14,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:14,027 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-12 14:00:14,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:00:14,028 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:14,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:14,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1460252195, now seen corresponding path program 1 times [2020-10-12 14:00:14,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:14,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259375125] [2020-10-12 14:00:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:14,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:14,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:14,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:14,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 714 [2020-10-12 14:00:19,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:00:19,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 14:00:19,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:00:19,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 579 [2020-10-12 14:00:19,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 14:00:19,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:19,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:00:19,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:19,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:00:19,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:19,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:00:19,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:00:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:00:19,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:00:19,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:00:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:00:19,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:00:19,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:00:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2020-10-12 14:00:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:00:19,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:19,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-12 14:00:19,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:00:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:00:19,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:20,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1612 backedges. 668 proven. 2 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-12 14:00:20,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259375125] [2020-10-12 14:00:20,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:20,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:00:20,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801325682] [2020-10-12 14:00:20,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:00:20,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:20,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:00:20,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:00:20,875 INFO L87 Difference]: Start difference. First operand 3006 states and 3430 transitions. Second operand 10 states. [2020-10-12 14:00:21,518 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2020-10-12 14:00:22,684 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-12 14:00:22,881 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-12 14:00:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:23,585 INFO L93 Difference]: Finished difference Result 5759 states and 6623 transitions. [2020-10-12 14:00:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 14:00:23,586 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 694 [2020-10-12 14:00:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:23,598 INFO L225 Difference]: With dead ends: 5759 [2020-10-12 14:00:23,600 INFO L226 Difference]: Without dead ends: 3067 [2020-10-12 14:00:23,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-10-12 14:00:23,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2020-10-12 14:00:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 3000. [2020-10-12 14:00:23,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3000 states. [2020-10-12 14:00:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 3382 transitions. [2020-10-12 14:00:23,680 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 3382 transitions. Word has length 694 [2020-10-12 14:00:23,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:23,681 INFO L479 AbstractCegarLoop]: Abstraction has 3000 states and 3382 transitions. [2020-10-12 14:00:23,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:00:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 3382 transitions. [2020-10-12 14:00:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2020-10-12 14:00:23,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:23,691 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 4, 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] [2020-10-12 14:00:23,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:00:23,691 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:23,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1912279668, now seen corresponding path program 1 times [2020-10-12 14:00:23,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:23,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145546421] [2020-10-12 14:00:23,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:23,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:24,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:24,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:24,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:26,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:28,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:28,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 785 [2020-10-12 14:00:28,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:00:28,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 14:00:28,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:00:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 478 [2020-10-12 14:00:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 14:00:28,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:29,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:29,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:29,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:00:29,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:29,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:29,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:29,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:29,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:29,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:29,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:29,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:29,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:29,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:00:29,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:29,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:29,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:29,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:29,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:29,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:29,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:00:29,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:29,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:29,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:29,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:29,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:29,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:29,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:29,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:00:29,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:00:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:29,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:29,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:29,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:00:29,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:29,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:00:29,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:00:29,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:29,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:00:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:29,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:29,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:29,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:29,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:00:29,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:29,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-12 14:00:29,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:29,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:00:29,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:29,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:00:29,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:30,241 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2020-10-12 14:00:30,405 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-10-12 14:00:30,597 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-10-12 14:00:30,752 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-12 14:00:31,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2020-10-12 14:00:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:31,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:31,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:31,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:00:31,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:31,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:00:31,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:00:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:31,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1747 backedges. 739 proven. 73 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-12 14:00:32,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145546421] [2020-10-12 14:00:32,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:32,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:00:32,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539719320] [2020-10-12 14:00:32,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:00:32,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:32,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:00:32,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:00:32,887 INFO L87 Difference]: Start difference. First operand 3000 states and 3382 transitions. Second operand 13 states. [2020-10-12 14:00:33,541 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-10-12 14:00:33,881 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2020-10-12 14:00:34,188 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2020-10-12 14:00:34,503 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2020-10-12 14:00:34,849 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2020-10-12 14:00:35,231 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2020-10-12 14:00:35,604 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 88 [2020-10-12 14:00:36,494 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2020-10-12 14:00:36,768 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 53 [2020-10-12 14:00:37,089 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2020-10-12 14:00:37,343 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 55 [2020-10-12 14:00:37,624 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-10-12 14:00:37,864 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 61 [2020-10-12 14:00:38,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:38,422 INFO L93 Difference]: Finished difference Result 5834 states and 6623 transitions. [2020-10-12 14:00:38,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:00:38,423 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 765 [2020-10-12 14:00:38,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:38,434 INFO L225 Difference]: With dead ends: 5834 [2020-10-12 14:00:38,434 INFO L226 Difference]: Without dead ends: 3016 [2020-10-12 14:00:38,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:00:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2020-10-12 14:00:38,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2996. [2020-10-12 14:00:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2996 states. [2020-10-12 14:00:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 3356 transitions. [2020-10-12 14:00:38,504 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 3356 transitions. Word has length 765 [2020-10-12 14:00:38,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:38,504 INFO L479 AbstractCegarLoop]: Abstraction has 2996 states and 3356 transitions. [2020-10-12 14:00:38,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:00:38,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 3356 transitions. [2020-10-12 14:00:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2020-10-12 14:00:38,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:38,514 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:38,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:00:38,515 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:38,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:38,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1525705848, now seen corresponding path program 1 times [2020-10-12 14:00:38,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:38,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407808652] [2020-10-12 14:00:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:38,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:38,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:39,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:40,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 811 [2020-10-12 14:00:43,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:00:43,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-12 14:00:43,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:00:43,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 504 [2020-10-12 14:00:43,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:00:43,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:43,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:43,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:43,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:00:43,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:43,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:43,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:43,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:43,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:43,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:00:43,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:43,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:43,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:43,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:43,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:43,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:43,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:43,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:00:43,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:43,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:44,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:44,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:44,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:44,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:44,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:44,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:00:44,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:44,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:44,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:44,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:44,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:44,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:00:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:44,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:44,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:44,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:00:44,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:44,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:00:44,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:44,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:44,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:44,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 14:00:44,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:44,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:00:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:44,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:44,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:44,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:44,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:00:44,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:44,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-10-12 14:00:44,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:44,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:00:44,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:00:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:45,220 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-10-12 14:00:45,472 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2020-10-12 14:00:45,795 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2020-10-12 14:00:46,360 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-12 14:00:46,724 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2020-10-12 14:00:47,019 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2020-10-12 14:00:47,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 675 [2020-10-12 14:00:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:47,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:47,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:47,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:00:47,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:47,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:00:47,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:47,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:00:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:47,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:50,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1773 backedges. 765 proven. 73 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-12 14:00:50,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407808652] [2020-10-12 14:00:50,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:50,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:00:50,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939857140] [2020-10-12 14:00:50,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:00:50,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:50,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:00:50,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:00:50,377 INFO L87 Difference]: Start difference. First operand 2996 states and 3356 transitions. Second operand 13 states. [2020-10-12 14:00:51,205 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2020-10-12 14:00:51,975 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-12 14:00:52,389 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2020-10-12 14:00:52,806 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 81 [2020-10-12 14:00:53,182 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2020-10-12 14:00:53,734 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 88 [2020-10-12 14:00:54,296 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 102 [2020-10-12 14:00:54,751 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 63 [2020-10-12 14:00:54,963 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-10-12 14:00:55,723 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 54 [2020-10-12 14:00:56,691 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 60 [2020-10-12 14:00:57,009 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 65 [2020-10-12 14:00:57,322 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 60 [2020-10-12 14:00:57,786 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 57 [2020-10-12 14:00:58,234 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 61 [2020-10-12 14:00:59,086 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2020-10-12 14:00:59,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:59,234 INFO L93 Difference]: Finished difference Result 5826 states and 6574 transitions. [2020-10-12 14:00:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:00:59,237 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 791 [2020-10-12 14:00:59,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:59,246 INFO L225 Difference]: With dead ends: 5826 [2020-10-12 14:00:59,246 INFO L226 Difference]: Without dead ends: 3191 [2020-10-12 14:00:59,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=258, Invalid=672, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:00:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2020-10-12 14:00:59,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3169. [2020-10-12 14:00:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3169 states. [2020-10-12 14:00:59,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 3534 transitions. [2020-10-12 14:00:59,321 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 3534 transitions. Word has length 791 [2020-10-12 14:00:59,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:59,322 INFO L479 AbstractCegarLoop]: Abstraction has 3169 states and 3534 transitions. [2020-10-12 14:00:59,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:00:59,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 3534 transitions. [2020-10-12 14:00:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2020-10-12 14:00:59,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:59,333 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:00:59,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:00:59,334 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:59,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:59,334 INFO L82 PathProgramCache]: Analyzing trace with hash -392541428, now seen corresponding path program 1 times [2020-10-12 14:00:59,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:59,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411968214] [2020-10-12 14:00:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:59,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 829 [2020-10-12 14:01:04,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 522 [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:04,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:01:04,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:04,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:01:04,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:04,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:01:04,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:04,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:04,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:01:04,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:01:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:01:04,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 14:01:04,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:01:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:05,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-12 14:01:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:05,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:05,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:05,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:05,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-12 14:01:05,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:06,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2020-10-12 14:01:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:06,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:06,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:06,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:01:06,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:06,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:01:06,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:06,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:06,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:01:06,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:06,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1791 backedges. 783 proven. 73 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-12 14:01:08,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411968214] [2020-10-12 14:01:08,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:08,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:08,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589801481] [2020-10-12 14:01:08,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:08,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:08,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:08,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:08,045 INFO L87 Difference]: Start difference. First operand 3169 states and 3534 transitions. Second operand 13 states. [2020-10-12 14:01:08,518 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-12 14:01:08,681 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-12 14:01:08,872 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-12 14:01:09,035 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 14:01:09,358 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 14:01:09,596 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-10-12 14:01:09,947 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-12 14:01:10,580 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-10-12 14:01:10,842 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-12 14:01:11,065 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-10-12 14:01:11,235 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-12 14:01:11,572 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 14:01:11,838 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2020-10-12 14:01:12,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:12,306 INFO L93 Difference]: Finished difference Result 6164 states and 6914 transitions. [2020-10-12 14:01:12,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:01:12,309 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 809 [2020-10-12 14:01:12,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:12,320 INFO L225 Difference]: With dead ends: 6164 [2020-10-12 14:01:12,321 INFO L226 Difference]: Without dead ends: 3259 [2020-10-12 14:01:12,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:01:12,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2020-10-12 14:01:12,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 3243. [2020-10-12 14:01:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-10-12 14:01:12,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 3609 transitions. [2020-10-12 14:01:12,389 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 3609 transitions. Word has length 809 [2020-10-12 14:01:12,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:12,390 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 3609 transitions. [2020-10-12 14:01:12,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:12,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 3609 transitions. [2020-10-12 14:01:12,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2020-10-12 14:01:12,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:12,401 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:01:12,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:01:12,401 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:12,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:12,402 INFO L82 PathProgramCache]: Analyzing trace with hash -2076735659, now seen corresponding path program 1 times [2020-10-12 14:01:12,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:12,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248308211] [2020-10-12 14:01:12,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:12,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:12,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:13,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:16,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 907 [2020-10-12 14:01:17,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:17,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 14:01:17,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 14:01:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:01:17,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:17,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:17,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:17,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:01:17,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:17,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:17,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:17,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:01:17,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:17,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:17,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:17,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:17,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:01:17,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:17,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:17,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:17,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:17,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:17,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:01:17,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:01:17,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:17,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:01:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:18,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:18,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:01:18,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:18,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-10-12 14:01:18,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:18,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:18,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:18,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:01:18,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:18,808 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-10-12 14:01:19,017 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-10-12 14:01:19,179 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-12 14:01:19,376 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2020-10-12 14:01:19,579 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-10-12 14:01:19,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-12 14:01:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:19,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:19,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:01:19,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:19,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:01:19,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 14:01:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:19,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:19,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-12 14:01:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:19,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:20,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:20,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:20,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:20,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:01:20,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:01:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:20,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:20,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-12 14:01:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:20,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:20,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:20,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:01:20,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:20,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:01:20,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:20,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:01:20,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:20,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:21,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2288 backedges. 667 proven. 320 refuted. 0 times theorem prover too weak. 1301 trivial. 0 not checked. [2020-10-12 14:01:21,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248308211] [2020-10-12 14:01:21,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:21,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:21,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648863698] [2020-10-12 14:01:21,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:21,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:21,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:21,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:21,806 INFO L87 Difference]: Start difference. First operand 3243 states and 3609 transitions. Second operand 13 states. [2020-10-12 14:01:22,472 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-10-12 14:01:22,625 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-12 14:01:22,874 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-10-12 14:01:23,039 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-12 14:01:23,705 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 14:01:24,205 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2020-10-12 14:01:24,660 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2020-10-12 14:01:24,828 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-10-12 14:01:25,102 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2020-10-12 14:01:25,294 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-10-12 14:01:25,624 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-10-12 14:01:25,940 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 51 [2020-10-12 14:01:26,244 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2020-10-12 14:01:26,504 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-12 14:01:26,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:26,817 INFO L93 Difference]: Finished difference Result 6688 states and 7449 transitions. [2020-10-12 14:01:26,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:01:26,817 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 885 [2020-10-12 14:01:26,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:26,826 INFO L225 Difference]: With dead ends: 6688 [2020-10-12 14:01:26,826 INFO L226 Difference]: Without dead ends: 3408 [2020-10-12 14:01:26,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=264, Invalid=666, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:01:26,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2020-10-12 14:01:26,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 3170. [2020-10-12 14:01:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3170 states. [2020-10-12 14:01:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 3533 transitions. [2020-10-12 14:01:26,892 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 3533 transitions. Word has length 885 [2020-10-12 14:01:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:26,893 INFO L479 AbstractCegarLoop]: Abstraction has 3170 states and 3533 transitions. [2020-10-12 14:01:26,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 3533 transitions. [2020-10-12 14:01:26,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2020-10-12 14:01:26,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:26,906 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:26,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:01:26,906 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:26,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:26,907 INFO L82 PathProgramCache]: Analyzing trace with hash -625486658, now seen corresponding path program 1 times [2020-10-12 14:01:26,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:26,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793859200] [2020-10-12 14:01:26,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:27,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:30,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:32,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:32,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 914 [2020-10-12 14:01:32,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:32,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 14:01:32,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 14:01:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 14:01:32,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:32,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:32,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:32,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:32,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:32,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:32,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:32,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:32,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:32,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:32,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:32,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:01:32,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:32,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:32,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:32,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:32,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:32,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:32,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:32,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:32,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:32,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:32,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:01:32,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:32,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:32,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:32,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:32,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:32,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:01:32,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:32,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:01:32,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:32,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:32,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 14:01:32,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:32,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:01:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:32,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:32,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:33,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:33,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:01:33,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:33,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-10-12 14:01:33,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:01:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:33,499 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-10-12 14:01:33,650 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-10-12 14:01:33,837 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2020-10-12 14:01:34,012 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-10-12 14:01:34,336 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-10-12 14:01:34,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-12 14:01:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:34,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:34,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:01:34,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:34,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:01:34,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 14:01:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:34,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:34,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-12 14:01:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:34,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:34,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:34,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:01:34,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:01:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:34,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-12 14:01:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:34,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:34,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:01:34,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:34,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:01:34,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:01:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:34,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 674 proven. 320 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2020-10-12 14:01:36,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793859200] [2020-10-12 14:01:36,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:36,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:36,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936005162] [2020-10-12 14:01:36,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:36,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:36,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:36,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:36,679 INFO L87 Difference]: Start difference. First operand 3170 states and 3533 transitions. Second operand 13 states. [2020-10-12 14:01:37,338 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-10-12 14:01:37,951 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-12 14:01:38,212 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 14:01:38,383 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:01:38,593 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:01:38,736 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 60 [2020-10-12 14:01:38,987 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2020-10-12 14:01:39,692 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-12 14:01:40,240 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-12 14:01:40,515 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-12 14:01:40,710 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-12 14:01:40,949 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-12 14:01:41,134 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 56 [2020-10-12 14:01:41,436 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-12 14:01:41,665 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-10-12 14:01:41,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:41,945 INFO L93 Difference]: Finished difference Result 6530 states and 7293 transitions. [2020-10-12 14:01:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:01:41,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 892 [2020-10-12 14:01:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:41,958 INFO L225 Difference]: With dead ends: 6530 [2020-10-12 14:01:41,959 INFO L226 Difference]: Without dead ends: 3500 [2020-10-12 14:01:41,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:01:41,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2020-10-12 14:01:42,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3406. [2020-10-12 14:01:42,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3406 states. [2020-10-12 14:01:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 3775 transitions. [2020-10-12 14:01:42,037 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 3775 transitions. Word has length 892 [2020-10-12 14:01:42,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:42,038 INFO L479 AbstractCegarLoop]: Abstraction has 3406 states and 3775 transitions. [2020-10-12 14:01:42,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 3775 transitions. [2020-10-12 14:01:42,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2020-10-12 14:01:42,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:42,052 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:01:42,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:01:42,053 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:42,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:42,053 INFO L82 PathProgramCache]: Analyzing trace with hash -638628195, now seen corresponding path program 1 times [2020-10-12 14:01:42,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:42,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444355226] [2020-10-12 14:01:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:42,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:42,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:44,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:44,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:47,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 993 [2020-10-12 14:01:47,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:47,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-12 14:01:47,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-12 14:01:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 14:01:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,658 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 28 [2020-10-12 14:01:47,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:47,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:47,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:47,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:47,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:47,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:47,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:47,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:47,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:47,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:47,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:47,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:47,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:47,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:01:47,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:47,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:47,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:47,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:01:47,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:47,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:47,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:01:47,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:47,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:01:47,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:47,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:47,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:47,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:47,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:01:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:47,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:47,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:01:47,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:47,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:01:47,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:47,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:47,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:47,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:47,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 14:01:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:47,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:48,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:48,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:01:48,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:48,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:01:48,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-12 14:01:48,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:48,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-12 14:01:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:48,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:48,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:48,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:48,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:48,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-12 14:01:48,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:48,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:48,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:48,832 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-10-12 14:01:49,019 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-10-12 14:01:49,215 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2020-10-12 14:01:49,482 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2020-10-12 14:01:49,772 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-10-12 14:01:50,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-12 14:01:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:50,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:50,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:50,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:01:50,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:50,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:01:50,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:50,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:50,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:01:50,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:50,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 994 proven. 73 refuted. 0 times theorem prover too weak. 1505 trivial. 0 not checked. [2020-10-12 14:01:51,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444355226] [2020-10-12 14:01:51,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:51,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:51,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14385807] [2020-10-12 14:01:51,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:51,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:51,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:51,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:51,628 INFO L87 Difference]: Start difference. First operand 3406 states and 3775 transitions. Second operand 13 states. [2020-10-12 14:01:52,939 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2020-10-12 14:01:53,499 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-12 14:01:53,672 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-12 14:01:53,883 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 14:01:54,106 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-12 14:01:54,342 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-10-12 14:01:54,697 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2020-10-12 14:01:55,182 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2020-10-12 14:01:56,814 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 14:01:57,015 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-12 14:01:57,252 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-10-12 14:01:57,499 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2020-10-12 14:01:57,772 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-10-12 14:01:58,107 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2020-10-12 14:01:58,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:58,578 INFO L93 Difference]: Finished difference Result 6822 states and 7575 transitions. [2020-10-12 14:01:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:01:58,584 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 971 [2020-10-12 14:01:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:58,593 INFO L225 Difference]: With dead ends: 6822 [2020-10-12 14:01:58,593 INFO L226 Difference]: Without dead ends: 3171 [2020-10-12 14:01:58,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:01:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2020-10-12 14:01:58,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3153. [2020-10-12 14:01:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3153 states. [2020-10-12 14:01:58,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 3493 transitions. [2020-10-12 14:01:58,652 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 3493 transitions. Word has length 971 [2020-10-12 14:01:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:58,652 INFO L479 AbstractCegarLoop]: Abstraction has 3153 states and 3493 transitions. [2020-10-12 14:01:58,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:58,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 3493 transitions. [2020-10-12 14:01:58,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2020-10-12 14:01:58,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:58,666 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:58,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:01:58,667 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:58,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:58,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1931274326, now seen corresponding path program 1 times [2020-10-12 14:01:58,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:58,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644141127] [2020-10-12 14:01:58,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:58,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:59,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:02,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:02,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 997 [2020-10-12 14:02:02,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:02:02,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3936 [2020-10-12 14:02:02,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:02,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:02,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:02:02,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:02:02,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:02,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:02,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:02,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:02,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:02,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:02,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:02,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:02,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:02,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:02,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:02,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:02,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:02,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:02,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:02,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:02,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:02,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:02,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:02,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:02,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:02,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:02:02,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:02,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:03,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:03,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:03,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:03,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:03,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:03,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:03,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:03,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:03,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:03,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:02:03,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:03,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:03,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:03,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:03,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:03,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:03,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:03,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:03,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:03,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:03,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 14:02:03,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:02:03,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:03,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:03,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:02:03,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:03,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:02:03,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:03,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:03,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:03,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:02:03,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:03,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2900 backedges. 871 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-12 14:02:03,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644141127] [2020-10-12 14:02:03,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:03,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:02:03,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469122220] [2020-10-12 14:02:03,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:02:03,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:02:03,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:02:03,885 INFO L87 Difference]: Start difference. First operand 3153 states and 3493 transitions. Second operand 7 states. [2020-10-12 14:02:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:05,541 INFO L93 Difference]: Finished difference Result 7234 states and 8225 transitions. [2020-10-12 14:02:05,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:02:05,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 973 [2020-10-12 14:02:05,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:05,560 INFO L225 Difference]: With dead ends: 7234 [2020-10-12 14:02:05,560 INFO L226 Difference]: Without dead ends: 4085 [2020-10-12 14:02:05,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:02:05,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2020-10-12 14:02:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 3709. [2020-10-12 14:02:05,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3709 states. [2020-10-12 14:02:05,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 4099 transitions. [2020-10-12 14:02:05,635 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 4099 transitions. Word has length 973 [2020-10-12 14:02:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:05,637 INFO L479 AbstractCegarLoop]: Abstraction has 3709 states and 4099 transitions. [2020-10-12 14:02:05,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:02:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 4099 transitions. [2020-10-12 14:02:05,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2020-10-12 14:02:05,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:05,656 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:05,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:02:05,657 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:05,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:05,657 INFO L82 PathProgramCache]: Analyzing trace with hash -496759560, now seen corresponding path program 1 times [2020-10-12 14:02:05,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:05,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611010191] [2020-10-12 14:02:05,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:06,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:06,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:07,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:09,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:10,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:10,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1078 [2020-10-12 14:02:10,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:10,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 14:02:10,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:10,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:02:10,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:02:10,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 339 [2020-10-12 14:02:10,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:11,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:11,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:11,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:11,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:11,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:11,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:11,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:11,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:11,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:02:11,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:11,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:11,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:02:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:11,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-12 14:02:11,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:02:11,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:11,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:11,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 14:02:11,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 14:02:11,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 14:02:11,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-12 14:02:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:02:11,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:02:11,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:02:11,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3567 backedges. 1971 proven. 151 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2020-10-12 14:02:12,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611010191] [2020-10-12 14:02:12,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:12,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:02:12,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866240704] [2020-10-12 14:02:12,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:02:12,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:12,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:02:12,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:02:12,302 INFO L87 Difference]: Start difference. First operand 3709 states and 4099 transitions. Second operand 10 states. [2020-10-12 14:02:15,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:15,184 INFO L93 Difference]: Finished difference Result 8841 states and 9935 transitions. [2020-10-12 14:02:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 14:02:15,185 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1052 [2020-10-12 14:02:15,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:15,200 INFO L225 Difference]: With dead ends: 8841 [2020-10-12 14:02:15,200 INFO L226 Difference]: Without dead ends: 5322 [2020-10-12 14:02:15,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2020-10-12 14:02:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2020-10-12 14:02:15,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 5193. [2020-10-12 14:02:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5193 states. [2020-10-12 14:02:15,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 5849 transitions. [2020-10-12 14:02:15,312 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 5849 transitions. Word has length 1052 [2020-10-12 14:02:15,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:15,313 INFO L479 AbstractCegarLoop]: Abstraction has 5193 states and 5849 transitions. [2020-10-12 14:02:15,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:02:15,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 5849 transitions. [2020-10-12 14:02:15,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1454 [2020-10-12 14:02:15,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:15,343 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:15,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:02:15,344 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:15,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:15,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1123250697, now seen corresponding path program 1 times [2020-10-12 14:02:15,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:15,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580307411] [2020-10-12 14:02:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:15,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:16,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:17,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:18,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1483 [2020-10-12 14:02:20,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:20,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 14:02:20,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:20,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1253 [2020-10-12 14:02:20,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 14:02:20,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:20,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:20,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:20,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:20,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:20,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:20,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:20,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:20,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:20,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:20,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:20,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:20,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:20,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:20,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:20,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:20,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:20,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:20,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:20,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:02:20,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:20,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:21,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:02:21,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:21,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:02:21,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:21,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:02:21,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:02:21,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:02:21,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:02:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:02:21,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:02:21,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:02:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:02:21,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:02:21,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:21,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:02:21,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:02:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 14:02:21,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:21,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-12 14:02:21,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 14:02:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 1712 proven. 2 refuted. 0 times theorem prover too weak. 4606 trivial. 0 not checked. [2020-10-12 14:02:25,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580307411] [2020-10-12 14:02:25,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:25,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:25,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415170779] [2020-10-12 14:02:25,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:25,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:25,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:25,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:25,203 INFO L87 Difference]: Start difference. First operand 5193 states and 5849 transitions. Second operand 13 states. [2020-10-12 14:02:25,898 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-10-12 14:02:26,157 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2020-10-12 14:02:26,373 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-10-12 14:02:26,569 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-12 14:02:26,758 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-12 14:02:27,036 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 14:02:27,260 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2020-10-12 14:02:27,700 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2020-10-12 14:02:28,524 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-10-12 14:02:28,809 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-10-12 14:02:29,046 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 14:02:29,278 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-10-12 14:02:29,581 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-10-12 14:02:29,835 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2020-10-12 14:02:30,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:30,345 INFO L93 Difference]: Finished difference Result 10396 states and 11745 transitions. [2020-10-12 14:02:30,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:30,348 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1453 [2020-10-12 14:02:30,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:30,362 INFO L225 Difference]: With dead ends: 10396 [2020-10-12 14:02:30,362 INFO L226 Difference]: Without dead ends: 5305 [2020-10-12 14:02:30,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=255, Invalid=615, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:30,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5305 states. [2020-10-12 14:02:30,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5305 to 5151. [2020-10-12 14:02:30,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5151 states. [2020-10-12 14:02:30,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 5806 transitions. [2020-10-12 14:02:30,474 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 5806 transitions. Word has length 1453 [2020-10-12 14:02:30,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:30,476 INFO L479 AbstractCegarLoop]: Abstraction has 5151 states and 5806 transitions. [2020-10-12 14:02:30,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:30,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 5806 transitions. [2020-10-12 14:02:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1518 [2020-10-12 14:02:30,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:30,508 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:30,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:02:30,509 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:30,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:30,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1602307721, now seen corresponding path program 1 times [2020-10-12 14:02:30,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:30,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416664861] [2020-10-12 14:02:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:31,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:32,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:32,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:32,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1547 [2020-10-12 14:02:32,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:32,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2094 [2020-10-12 14:02:32,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:32,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:32,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-12 14:02:32,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 14:02:32,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:33,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:33,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:33,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:33,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:33,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:33,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:33,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:02:33,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:33,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:02:33,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:33,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:02:33,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:33,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:02:33,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:33,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:02:33,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:02:33,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:02:33,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:02:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:02:33,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:02:33,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:02:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:02:33,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:02:33,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:33,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:33,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:02:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:33,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:33,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 14:02:33,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:33,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:02:33,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:33,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:33,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:33,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-12 14:02:33,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:34,739 INFO L134 CoverageAnalysis]: Checked inductivity of 6522 backedges. 492 proven. 11 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-10-12 14:02:34,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416664861] [2020-10-12 14:02:34,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:34,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:02:34,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906493164] [2020-10-12 14:02:34,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:02:34,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:34,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:02:34,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:02:34,741 INFO L87 Difference]: Start difference. First operand 5151 states and 5806 transitions. Second operand 5 states. [2020-10-12 14:02:35,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:35,582 INFO L93 Difference]: Finished difference Result 9969 states and 11250 transitions. [2020-10-12 14:02:35,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:02:35,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1517 [2020-10-12 14:02:35,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:35,602 INFO L225 Difference]: With dead ends: 9969 [2020-10-12 14:02:35,603 INFO L226 Difference]: Without dead ends: 4979 [2020-10-12 14:02:35,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:02:35,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2020-10-12 14:02:35,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4965. [2020-10-12 14:02:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4965 states. [2020-10-12 14:02:35,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 5557 transitions. [2020-10-12 14:02:35,690 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 5557 transitions. Word has length 1517 [2020-10-12 14:02:35,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:35,692 INFO L479 AbstractCegarLoop]: Abstraction has 4965 states and 5557 transitions. [2020-10-12 14:02:35,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:02:35,692 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 5557 transitions. [2020-10-12 14:02:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1525 [2020-10-12 14:02:35,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:35,720 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:35,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:02:35,721 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:35,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:35,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1263956229, now seen corresponding path program 1 times [2020-10-12 14:02:35,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:35,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350979585] [2020-10-12 14:02:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:36,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:38,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1556 [2020-10-12 14:02:41,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-12 14:02:41,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-12 14:02:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:02:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:41,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:41,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:41,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:02:41,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:41,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:02:41,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:41,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:41,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:41,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:02:41,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:41,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:02:41,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:41,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:41,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:41,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:02:41,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:02:41,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:02:41,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:02:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:02:41,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:02:41,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:02:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:02:41,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:02:41,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:41,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:41,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:02:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:41,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:02:41,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:41,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 14:02:41,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:02:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:41,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-12 14:02:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:41,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:42,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:42,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:02:42,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:02:42,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:02:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 7137 backedges. 1347 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-12 14:02:43,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350979585] [2020-10-12 14:02:43,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:43,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:02:43,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913080064] [2020-10-12 14:02:43,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:02:43,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:43,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:02:43,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:02:43,081 INFO L87 Difference]: Start difference. First operand 4965 states and 5557 transitions. Second operand 8 states. [2020-10-12 14:02:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:45,156 INFO L93 Difference]: Finished difference Result 11208 states and 12729 transitions. [2020-10-12 14:02:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:02:45,158 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1524 [2020-10-12 14:02:45,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:45,170 INFO L225 Difference]: With dead ends: 11208 [2020-10-12 14:02:45,170 INFO L226 Difference]: Without dead ends: 4955 [2020-10-12 14:02:45,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:02:45,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2020-10-12 14:02:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4027. [2020-10-12 14:02:45,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4027 states. [2020-10-12 14:02:45,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4027 states to 4027 states and 4334 transitions. [2020-10-12 14:02:45,247 INFO L78 Accepts]: Start accepts. Automaton has 4027 states and 4334 transitions. Word has length 1524 [2020-10-12 14:02:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:45,249 INFO L479 AbstractCegarLoop]: Abstraction has 4027 states and 4334 transitions. [2020-10-12 14:02:45,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:02:45,249 INFO L276 IsEmpty]: Start isEmpty. Operand 4027 states and 4334 transitions. [2020-10-12 14:02:45,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1534 [2020-10-12 14:02:45,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:45,273 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:45,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:02:45,273 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:45,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:45,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1591616700, now seen corresponding path program 1 times [2020-10-12 14:02:45,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:45,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897730118] [2020-10-12 14:02:45,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:46,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:47,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1565 [2020-10-12 14:02:50,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:50,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4544 [2020-10-12 14:02:50,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-12 14:02:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 14:02:50,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:50,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:50,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:50,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:50,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:50,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:50,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:50,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:02:50,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:50,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:50,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:50,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:02:50,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:50,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:50,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:50,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:02:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:02:50,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:02:50,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:02:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:02:50,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:02:50,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:02:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:02:50,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:02:50,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:02:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:02:50,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:02:50,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:02:50,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-12 14:02:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:51,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:51,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:51,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:02:51,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:51,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:02:51,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:51,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:51,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:51,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:02:51,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 7227 backedges. 1437 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-12 14:02:52,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897730118] [2020-10-12 14:02:52,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:52,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:02:52,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590249903] [2020-10-12 14:02:52,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:02:52,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:52,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:02:52,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:02:52,204 INFO L87 Difference]: Start difference. First operand 4027 states and 4334 transitions. Second operand 7 states. [2020-10-12 14:02:53,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:53,580 INFO L93 Difference]: Finished difference Result 8009 states and 8629 transitions. [2020-10-12 14:02:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:02:53,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1533 [2020-10-12 14:02:53,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:53,591 INFO L225 Difference]: With dead ends: 8009 [2020-10-12 14:02:53,591 INFO L226 Difference]: Without dead ends: 4140 [2020-10-12 14:02:53,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:02:53,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2020-10-12 14:02:53,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 4025. [2020-10-12 14:02:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4025 states. [2020-10-12 14:02:53,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 4327 transitions. [2020-10-12 14:02:53,659 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 4327 transitions. Word has length 1533 [2020-10-12 14:02:53,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:53,660 INFO L479 AbstractCegarLoop]: Abstraction has 4025 states and 4327 transitions. [2020-10-12 14:02:53,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:02:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 4327 transitions. [2020-10-12 14:02:53,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2020-10-12 14:02:53,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:53,685 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:53,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 14:02:53,685 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:53,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:53,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1057836587, now seen corresponding path program 1 times [2020-10-12 14:02:53,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:53,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553868335] [2020-10-12 14:02:53,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:54,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:54,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:56,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking...