/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:47:40,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:47:40,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:47:40,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:47:40,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:47:40,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:47:40,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:47:40,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:47:40,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:47:40,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:47:40,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:47:40,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:47:40,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:47:40,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:47:40,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:47:40,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:47:40,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:47:40,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:47:40,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:47:40,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:47:40,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:47:40,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:47:40,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:47:40,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:47:40,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:47:40,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:47:40,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:47:40,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:47:40,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:47:40,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:47:40,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:47:40,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:47:40,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:47:40,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:47:40,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:47:40,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:47:40,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:47:40,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:47:40,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:47:40,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:47:40,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:47:40,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 08:47:40,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:47:40,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:47:40,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:47:40,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:47:40,606 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:47:40,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:47:40,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:47:40,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:47:40,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:47:40,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:47:40,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:47:40,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:47:40,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:47:40,608 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:47:40,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:47:40,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:47:40,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:47:40,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:47:40,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:47:40,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:47:40,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:47:40,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:47:40,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:47:40,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:47:40,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:47:40,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:47:40,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:47:40,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:47:40,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:47:40,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:47:40,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:47:40,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:47:40,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:47:40,949 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:47:40,950 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:47:40,951 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label11.c [2020-10-13 08:47:41,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/658a6a830/f38cac53b1514234a69f7080dee612bc/FLAG7b6e3a345 [2020-10-13 08:47:41,556 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:47:41,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label11.c [2020-10-13 08:47:41,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/658a6a830/f38cac53b1514234a69f7080dee612bc/FLAG7b6e3a345 [2020-10-13 08:47:41,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/658a6a830/f38cac53b1514234a69f7080dee612bc [2020-10-13 08:47:41,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:47:41,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:47:41,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:47:41,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:47:41,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:47:41,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:47:41" (1/1) ... [2020-10-13 08:47:41,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ff463a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:41, skipping insertion in model container [2020-10-13 08:47:41,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:47:41" (1/1) ... [2020-10-13 08:47:41,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:47:41,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:47:42,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:47:42,625 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:47:42,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:47:42,786 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:47:42,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42 WrapperNode [2020-10-13 08:47:42,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:47:42,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:47:42,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:47:42,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:47:42,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... [2020-10-13 08:47:42,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:47:42,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:47:42,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:47:42,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:47:42,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:47:43,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:47:43,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:47:43,099 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:47:43,099 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:47:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:47:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:47:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:47:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:47:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:47:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:47:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:47:44,978 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:47:44,979 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:47:44,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:47:44 BoogieIcfgContainer [2020-10-13 08:47:44,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:47:44,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:47:44,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:47:44,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:47:44,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:47:41" (1/3) ... [2020-10-13 08:47:44,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e5ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:47:44, skipping insertion in model container [2020-10-13 08:47:44,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:47:42" (2/3) ... [2020-10-13 08:47:44,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e5ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:47:44, skipping insertion in model container [2020-10-13 08:47:44,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:47:44" (3/3) ... [2020-10-13 08:47:44,995 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label11.c [2020-10-13 08:47:45,005 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:47:45,013 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:47:45,027 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:47:45,057 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:47:45,057 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:47:45,058 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:47:45,058 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:47:45,058 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:47:45,059 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:47:45,059 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:47:45,059 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:47:45,086 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:47:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-13 08:47:45,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:45,096 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] [2020-10-13 08:47:45,096 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:45,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:45,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1178512258, now seen corresponding path program 1 times [2020-10-13 08:47:45,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:45,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825039203] [2020-10-13 08:47:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 08:47:45,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-10-13 08:47:45,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:47:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:47:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:47:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:47:45,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:45,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:47:45,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:47:45,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:45,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825039203] [2020-10-13 08:47:45,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:47:45,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:47:45,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560755583] [2020-10-13 08:47:45,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:47:45,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:45,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:47:45,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:47:45,890 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:47:47,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:47,700 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-13 08:47:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:47,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-13 08:47:47,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:47,742 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:47:47,742 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:47:47,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:47:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:47:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:47:47,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-13 08:47:47,843 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 27 [2020-10-13 08:47:47,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:47,844 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-13 08:47:47,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:47:47,844 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-13 08:47:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 08:47:47,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:47,849 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 08:47:47,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:47:47,850 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:47,850 INFO L82 PathProgramCache]: Analyzing trace with hash -169059783, now seen corresponding path program 1 times [2020-10-13 08:47:47,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:47,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224151821] [2020-10-13 08:47:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:47,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:48,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:48,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:48,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:47:48,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:48,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-10-13 08:47:48,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:47:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:47:48,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:48,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:48,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:48,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:48,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:48,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:48,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:47:48,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:48,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:48,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:48,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:48,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:48,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:48,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:48,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:48,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:47:48,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:48,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 08:47:48,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:48,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:47:48,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:48,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224151821] [2020-10-13 08:47:48,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:48,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:47:48,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819036092] [2020-10-13 08:47:48,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:47:48,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:48,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:47:48,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:48,835 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 5 states. [2020-10-13 08:47:50,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:50,702 INFO L93 Difference]: Finished difference Result 1116 states and 1825 transitions. [2020-10-13 08:47:50,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:50,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-13 08:47:50,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:50,709 INFO L225 Difference]: With dead ends: 1116 [2020-10-13 08:47:50,709 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:47:50,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:47:50,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:47:50,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 560. [2020-10-13 08:47:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:47:50,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 843 transitions. [2020-10-13 08:47:50,789 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 843 transitions. Word has length 96 [2020-10-13 08:47:50,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:50,790 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 843 transitions. [2020-10-13 08:47:50,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:47:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 843 transitions. [2020-10-13 08:47:50,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 08:47:50,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:50,799 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:50,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:47:50,800 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:50,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:50,800 INFO L82 PathProgramCache]: Analyzing trace with hash 919326290, now seen corresponding path program 1 times [2020-10-13 08:47:50,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:50,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87044671] [2020-10-13 08:47:50,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:50,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:51,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:51,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:51,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:51,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 08:47:51,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:47:51,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-10-13 08:47:51,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-13 08:47:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:47:51,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:51,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:51,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:51,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:51,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:51,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:47:51,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:51,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:51,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:51,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:51,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:51,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:51,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:51,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 08:47:51,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:51,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 08:47:51,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 08:47:51,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:51,768 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:51,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87044671] [2020-10-13 08:47:51,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:51,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:47:51,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633944806] [2020-10-13 08:47:51,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:47:51,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:51,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:47:51,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:51,771 INFO L87 Difference]: Start difference. First operand 560 states and 843 transitions. Second operand 5 states. [2020-10-13 08:47:53,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:53,443 INFO L93 Difference]: Finished difference Result 1486 states and 2232 transitions. [2020-10-13 08:47:53,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:53,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-10-13 08:47:53,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:53,449 INFO L225 Difference]: With dead ends: 1486 [2020-10-13 08:47:53,449 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:47:53,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:47:53,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:47:53,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:47:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:47:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 825 transitions. [2020-10-13 08:47:53,473 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 825 transitions. Word has length 107 [2020-10-13 08:47:53,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:53,473 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 825 transitions. [2020-10-13 08:47:53,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:47:53,474 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 825 transitions. [2020-10-13 08:47:53,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 08:47:53,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:53,476 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:53,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:47:53,477 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:53,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:53,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1436608002, now seen corresponding path program 1 times [2020-10-13 08:47:53,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:53,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445923795] [2020-10-13 08:47:53,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:53,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:53,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:54,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:54,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 08:47:54,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:54,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-10-13 08:47:54,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 08:47:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:47:54,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:54,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:54,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:54,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:54,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:54,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:47:54,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:54,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:54,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:54,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:47:54,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:47:54,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:47:54,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:54,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445923795] [2020-10-13 08:47:54,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:54,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:47:54,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437126135] [2020-10-13 08:47:54,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:47:54,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:54,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:47:54,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:54,422 INFO L87 Difference]: Start difference. First operand 560 states and 825 transitions. Second operand 5 states. [2020-10-13 08:47:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:55,954 INFO L93 Difference]: Finished difference Result 1486 states and 2185 transitions. [2020-10-13 08:47:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:55,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-13 08:47:55,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:55,962 INFO L225 Difference]: With dead ends: 1486 [2020-10-13 08:47:55,962 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:47:55,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:47:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:47:55,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:47:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:47:55,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 800 transitions. [2020-10-13 08:47:55,992 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 800 transitions. Word has length 113 [2020-10-13 08:47:55,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:55,994 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 800 transitions. [2020-10-13 08:47:55,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:47:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 800 transitions. [2020-10-13 08:47:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 08:47:55,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:55,998 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:55,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:47:55,998 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:55,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:55,999 INFO L82 PathProgramCache]: Analyzing trace with hash -22461483, now seen corresponding path program 1 times [2020-10-13 08:47:55,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:55,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339130629] [2020-10-13 08:47:56,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:56,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:56,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:56,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:56,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-13 08:47:56,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:56,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-13 08:47:56,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:56,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:47:56,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:47:56,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:47:56,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:56,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:56,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:56,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:56,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:56,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:56,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:47:56,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:47:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:56,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:56,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:56,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:56,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:47:56,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:56,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-13 08:47:56,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:56,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:56,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:56,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:47:56,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:47:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:47:56,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339130629] [2020-10-13 08:47:56,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:47:56,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 08:47:56,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687709305] [2020-10-13 08:47:56,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:56,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:56,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:56,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:56,871 INFO L87 Difference]: Start difference. First operand 560 states and 800 transitions. Second operand 7 states. [2020-10-13 08:47:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:58,780 INFO L93 Difference]: Finished difference Result 1542 states and 2293 transitions. [2020-10-13 08:47:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:47:58,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2020-10-13 08:47:58,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:58,789 INFO L225 Difference]: With dead ends: 1542 [2020-10-13 08:47:58,790 INFO L226 Difference]: Without dead ends: 988 [2020-10-13 08:47:58,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:47:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-10-13 08:47:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 934. [2020-10-13 08:47:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2020-10-13 08:47:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1271 transitions. [2020-10-13 08:47:58,836 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1271 transitions. Word has length 126 [2020-10-13 08:47:58,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:58,837 INFO L479 AbstractCegarLoop]: Abstraction has 934 states and 1271 transitions. [2020-10-13 08:47:58,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:58,837 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1271 transitions. [2020-10-13 08:47:58,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-13 08:47:58,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:58,840 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 08:47:58,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:47:58,841 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:58,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:58,841 INFO L82 PathProgramCache]: Analyzing trace with hash -2026219074, now seen corresponding path program 1 times [2020-10-13 08:47:58,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:58,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065264143] [2020-10-13 08:47:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:58,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:58,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:59,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:59,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-13 08:48:00,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2074 [2020-10-13 08:48:00,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:00,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:48:00,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:48:00,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:01,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:01,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:01,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:01,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:48:01,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:01,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:01,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:01,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:01,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:48:01,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:01,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 08:48:01,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:01,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:01,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:48:01,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:01,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:48:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:01,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:01,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:01,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-13 08:48:01,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:48:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:01,698 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:48:01,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065264143] [2020-10-13 08:48:01,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:01,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:48:01,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915153947] [2020-10-13 08:48:01,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:48:01,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:01,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:48:01,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:01,702 INFO L87 Difference]: Start difference. First operand 934 states and 1271 transitions. Second operand 6 states. [2020-10-13 08:48:03,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:03,106 INFO L93 Difference]: Finished difference Result 1931 states and 2630 transitions. [2020-10-13 08:48:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:48:03,107 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-10-13 08:48:03,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:03,113 INFO L225 Difference]: With dead ends: 1931 [2020-10-13 08:48:03,113 INFO L226 Difference]: Without dead ends: 968 [2020-10-13 08:48:03,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:48:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2020-10-13 08:48:03,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 934. [2020-10-13 08:48:03,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2020-10-13 08:48:03,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1177 transitions. [2020-10-13 08:48:03,151 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1177 transitions. Word has length 195 [2020-10-13 08:48:03,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:03,152 INFO L479 AbstractCegarLoop]: Abstraction has 934 states and 1177 transitions. [2020-10-13 08:48:03,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:48:03,152 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1177 transitions. [2020-10-13 08:48:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-13 08:48:03,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:03,157 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 08:48:03,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:48:03,158 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash 734911350, now seen corresponding path program 1 times [2020-10-13 08:48:03,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:03,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956684687] [2020-10-13 08:48:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:03,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:03,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:05,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-13 08:48:07,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3900 [2020-10-13 08:48:07,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:48:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:48:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:48:07,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:07,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:07,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:07,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:07,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:48:07,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:48:07,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:48:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:07,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:07,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-13 08:48:07,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:48:07,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:48:07,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956684687] [2020-10-13 08:48:07,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:07,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:07,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361252274] [2020-10-13 08:48:07,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:07,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:07,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:07,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:07,726 INFO L87 Difference]: Start difference. First operand 934 states and 1177 transitions. Second operand 7 states. [2020-10-13 08:48:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:09,286 INFO L93 Difference]: Finished difference Result 2066 states and 2612 transitions. [2020-10-13 08:48:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:48:09,288 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-10-13 08:48:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:09,293 INFO L225 Difference]: With dead ends: 2066 [2020-10-13 08:48:09,293 INFO L226 Difference]: Without dead ends: 952 [2020-10-13 08:48:09,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:48:09,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2020-10-13 08:48:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 932. [2020-10-13 08:48:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-10-13 08:48:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1040 transitions. [2020-10-13 08:48:09,324 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1040 transitions. Word has length 199 [2020-10-13 08:48:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:09,325 INFO L479 AbstractCegarLoop]: Abstraction has 932 states and 1040 transitions. [2020-10-13 08:48:09,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1040 transitions. [2020-10-13 08:48:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-10-13 08:48:09,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:09,330 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:09,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:48:09,331 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:09,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash -48255742, now seen corresponding path program 1 times [2020-10-13 08:48:09,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:09,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836496708] [2020-10-13 08:48:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:09,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:09,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-13 08:48:11,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:11,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2023 [2020-10-13 08:48:11,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 08:48:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:48:11,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:48:11,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:11,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:11,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:48:11,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:48:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:11,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:12,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:12,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:12,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:12,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-13 08:48:12,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:48:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:12,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:48:12,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:13,014 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-10-13 08:48:13,187 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-13 08:48:13,381 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-13 08:48:13,597 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 08:48:13,829 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2020-10-13 08:48:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:48:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:14,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:14,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:14,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:14,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:48:14,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:14,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:14,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:48:14,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:14,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 40 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:48:15,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836496708] [2020-10-13 08:48:15,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:15,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:48:15,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190366358] [2020-10-13 08:48:15,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:48:15,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:15,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:48:15,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:48:15,085 INFO L87 Difference]: Start difference. First operand 932 states and 1040 transitions. Second operand 13 states. [2020-10-13 08:48:15,776 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-13 08:48:16,080 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-13 08:48:16,405 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-10-13 08:48:16,809 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-10-13 08:48:17,107 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-10-13 08:48:17,423 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2020-10-13 08:48:17,671 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-13 08:48:17,887 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-10-13 08:48:18,079 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-13 08:48:18,343 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2020-10-13 08:48:18,573 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2020-10-13 08:48:18,864 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 90 [2020-10-13 08:48:19,165 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-13 08:48:19,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:19,369 INFO L93 Difference]: Finished difference Result 2045 states and 2282 transitions. [2020-10-13 08:48:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 08:48:19,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 305 [2020-10-13 08:48:19,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:19,378 INFO L225 Difference]: With dead ends: 2045 [2020-10-13 08:48:19,378 INFO L226 Difference]: Without dead ends: 1045 [2020-10-13 08:48:19,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:48:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-10-13 08:48:19,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1041. [2020-10-13 08:48:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-10-13 08:48:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1152 transitions. [2020-10-13 08:48:19,411 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1152 transitions. Word has length 305 [2020-10-13 08:48:19,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:19,412 INFO L479 AbstractCegarLoop]: Abstraction has 1041 states and 1152 transitions. [2020-10-13 08:48:19,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:48:19,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1152 transitions. [2020-10-13 08:48:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-10-13 08:48:19,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:19,420 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:19,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:48:19,420 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:19,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:19,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1931596078, now seen corresponding path program 1 times [2020-10-13 08:48:19,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:19,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938580405] [2020-10-13 08:48:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:23,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:23,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 429 [2020-10-13 08:48:23,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:23,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3780 [2020-10-13 08:48:23,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:23,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:48:23,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 08:48:23,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:48:23,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:23,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:23,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:23,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:23,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:23,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:48:23,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:23,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:23,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:23,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:23,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:23,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:23,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:23,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:23,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:48:23,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:48:23,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:23,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:23,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:23,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:24,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:24,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:24,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:24,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 978 [2020-10-13 08:48:24,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:24,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:24,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:24,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:48:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:24,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-10-13 08:48:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:24,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:24,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:24,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:24,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:24,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 08:48:24,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:24,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:24,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:48:24,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:24,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:25,104 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 171 proven. 98 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-13 08:48:25,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938580405] [2020-10-13 08:48:25,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:25,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:48:25,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266987933] [2020-10-13 08:48:25,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:48:25,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:25,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:48:25,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:48:25,110 INFO L87 Difference]: Start difference. First operand 1041 states and 1152 transitions. Second operand 8 states. [2020-10-13 08:48:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:26,787 INFO L93 Difference]: Finished difference Result 2169 states and 2421 transitions. [2020-10-13 08:48:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:48:26,788 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 415 [2020-10-13 08:48:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:26,793 INFO L225 Difference]: With dead ends: 2169 [2020-10-13 08:48:26,794 INFO L226 Difference]: Without dead ends: 1241 [2020-10-13 08:48:26,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:48:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-10-13 08:48:26,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1227. [2020-10-13 08:48:26,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2020-10-13 08:48:26,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1345 transitions. [2020-10-13 08:48:26,836 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1345 transitions. Word has length 415 [2020-10-13 08:48:26,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:26,837 INFO L479 AbstractCegarLoop]: Abstraction has 1227 states and 1345 transitions. [2020-10-13 08:48:26,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:48:26,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1345 transitions. [2020-10-13 08:48:26,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2020-10-13 08:48:26,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:26,848 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:26,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:48:26,849 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:26,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:26,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1461125987, now seen corresponding path program 1 times [2020-10-13 08:48:26,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:26,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057696875] [2020-10-13 08:48:26,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:27,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:27,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:29,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 540 [2020-10-13 08:48:29,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:29,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2641 [2020-10-13 08:48:29,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:29,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:48:29,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-13 08:48:29,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:48:29,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:29,835 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 25 [2020-10-13 08:48:29,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:29,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:29,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:29,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:29,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:29,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:29,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:29,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:29,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:29,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:29,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:29,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:29,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:29,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:48:29,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:29,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:30,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:30,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:30,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:30,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:30,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 08:48:30,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 08:48:30,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:30,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:30,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:30,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:31,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:31,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:31,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:31,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-10-13 08:48:31,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:48:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:48:31,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:31,686 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-10-13 08:48:31,866 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-13 08:48:32,054 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-13 08:48:32,188 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-13 08:48:32,319 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-10-13 08:48:32,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2020-10-13 08:48:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:32,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:32,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:32,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:32,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:48:32,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:48:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:32,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 306 proven. 98 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-13 08:48:33,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057696875] [2020-10-13 08:48:33,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:33,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:48:33,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069661523] [2020-10-13 08:48:33,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:48:33,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:33,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:48:33,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:48:33,626 INFO L87 Difference]: Start difference. First operand 1227 states and 1345 transitions. Second operand 13 states. [2020-10-13 08:48:34,452 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-13 08:48:34,675 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-10-13 08:48:34,987 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2020-10-13 08:48:35,457 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2020-10-13 08:48:35,923 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2020-10-13 08:48:36,154 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2020-10-13 08:48:36,562 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 81 [2020-10-13 08:48:37,110 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-13 08:48:37,289 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2020-10-13 08:48:37,581 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 59 [2020-10-13 08:48:37,866 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 59 [2020-10-13 08:48:38,087 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 60 [2020-10-13 08:48:38,377 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 53 [2020-10-13 08:48:38,662 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-10-13 08:48:38,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:38,947 INFO L93 Difference]: Finished difference Result 2529 states and 2786 transitions. [2020-10-13 08:48:38,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 08:48:38,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 524 [2020-10-13 08:48:38,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:38,954 INFO L225 Difference]: With dead ends: 2529 [2020-10-13 08:48:38,954 INFO L226 Difference]: Without dead ends: 1348 [2020-10-13 08:48:38,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=254, Invalid=676, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:48:38,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2020-10-13 08:48:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1346. [2020-10-13 08:48:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-10-13 08:48:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1469 transitions. [2020-10-13 08:48:38,990 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1469 transitions. Word has length 524 [2020-10-13 08:48:38,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:38,991 INFO L479 AbstractCegarLoop]: Abstraction has 1346 states and 1469 transitions. [2020-10-13 08:48:38,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:48:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1469 transitions. [2020-10-13 08:48:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2020-10-13 08:48:39,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:39,006 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:39,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:48:39,007 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:39,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:39,007 INFO L82 PathProgramCache]: Analyzing trace with hash -958086370, now seen corresponding path program 1 times [2020-10-13 08:48:39,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:39,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728300739] [2020-10-13 08:48:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:39,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:39,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:41,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 659 [2020-10-13 08:48:43,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:43,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4306 [2020-10-13 08:48:43,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:48:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:48:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-13 08:48:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:43,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:43,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:43,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:43,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:43,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:43,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 08:48:43,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 08:48:43,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:44,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:44,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:44,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:44,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-10-13 08:48:44,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:44,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:48:44,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:44,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:48:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:44,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:44,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:44,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:44,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:44,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:48:44,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:48:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:44,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 449 proven. 98 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-10-13 08:48:44,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728300739] [2020-10-13 08:48:44,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:44,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:48:44,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789414936] [2020-10-13 08:48:44,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:48:44,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:44,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:48:44,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:48:44,554 INFO L87 Difference]: Start difference. First operand 1346 states and 1469 transitions. Second operand 8 states. [2020-10-13 08:48:46,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:46,248 INFO L93 Difference]: Finished difference Result 2773 states and 3043 transitions. [2020-10-13 08:48:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:48:46,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 641 [2020-10-13 08:48:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:46,256 INFO L225 Difference]: With dead ends: 2773 [2020-10-13 08:48:46,256 INFO L226 Difference]: Without dead ends: 1540 [2020-10-13 08:48:46,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:48:46,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2020-10-13 08:48:46,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1528. [2020-10-13 08:48:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1528 states. [2020-10-13 08:48:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1655 transitions. [2020-10-13 08:48:46,295 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1655 transitions. Word has length 641 [2020-10-13 08:48:46,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:46,296 INFO L479 AbstractCegarLoop]: Abstraction has 1528 states and 1655 transitions. [2020-10-13 08:48:46,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:48:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1655 transitions. [2020-10-13 08:48:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2020-10-13 08:48:46,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:46,304 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:46,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:48:46,304 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:46,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:46,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1748805557, now seen corresponding path program 1 times [2020-10-13 08:48:46,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:46,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380538473] [2020-10-13 08:48:46,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:46,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:46,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:47,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:47,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 742 [2020-10-13 08:48:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4867 [2020-10-13 08:48:51,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:48:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-13 08:48:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:48:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:51,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:51,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:51,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:48:51,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:51,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:48:51,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:51,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:48:51,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:48:51,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:48:51,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:48:51,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:48:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:52,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:52,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:52,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:52,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-13 08:48:52,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:48:52,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:52,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:48:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:52,544 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-10-13 08:48:52,696 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-10-13 08:48:52,864 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-10-13 08:48:53,052 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-10-13 08:48:53,241 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-10-13 08:48:53,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-13 08:48:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:53,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:53,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:53,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:48:53,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:53,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:48:53,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:48:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:53,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 556 proven. 98 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2020-10-13 08:48:55,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380538473] [2020-10-13 08:48:55,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:55,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:48:55,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589330762] [2020-10-13 08:48:55,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:48:55,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:55,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:48:55,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:48:55,235 INFO L87 Difference]: Start difference. First operand 1528 states and 1655 transitions. Second operand 13 states. [2020-10-13 08:48:55,862 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-10-13 08:48:56,260 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-13 08:48:56,527 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-13 08:48:56,713 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-13 08:48:56,910 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-10-13 08:48:57,404 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-10-13 08:48:57,633 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2020-10-13 08:48:57,830 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2020-10-13 08:48:58,480 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-10-13 08:48:58,911 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-10-13 08:48:59,081 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-13 08:48:59,280 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2020-10-13 08:48:59,743 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-10-13 08:48:59,998 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2020-10-13 08:49:00,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:00,307 INFO L93 Difference]: Finished difference Result 3133 states and 3414 transitions. [2020-10-13 08:49:00,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:49:00,308 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 722 [2020-10-13 08:49:00,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:00,314 INFO L225 Difference]: With dead ends: 3133 [2020-10-13 08:49:00,315 INFO L226 Difference]: Without dead ends: 1711 [2020-10-13 08:49:00,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:49:00,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2020-10-13 08:49:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1705. [2020-10-13 08:49:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1705 states. [2020-10-13 08:49:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 1837 transitions. [2020-10-13 08:49:00,357 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 1837 transitions. Word has length 722 [2020-10-13 08:49:00,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:00,359 INFO L479 AbstractCegarLoop]: Abstraction has 1705 states and 1837 transitions. [2020-10-13 08:49:00,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:49:00,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 1837 transitions. [2020-10-13 08:49:00,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2020-10-13 08:49:00,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:00,368 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:00,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:49:00,368 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:00,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:00,368 INFO L82 PathProgramCache]: Analyzing trace with hash -101004111, now seen corresponding path program 1 times [2020-10-13 08:49:00,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:00,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885164258] [2020-10-13 08:49:00,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:03,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 820 [2020-10-13 08:49:03,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:03,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3117 [2020-10-13 08:49:03,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:49:03,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:49:03,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:49:03,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:03,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:03,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:03,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:03,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:03,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:03,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:03,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:03,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:03,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:03,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:03,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:03,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:49:03,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:03,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:03,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:03,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:03,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:03,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:03,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:03,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:49:03,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:03,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:04,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:04,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:04,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:04,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:04,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:04,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:49:04,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:04,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:04,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:04,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:04,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:49:04,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:04,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-13 08:49:04,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:49:04,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:04,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:49:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:04,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:04,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:05,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:05,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:05,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:05,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-10-13 08:49:05,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:05,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:05,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:05,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:49:05,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:05,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-13 08:49:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:05,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:05,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:05,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:49:05,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:49:05,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:49:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:05,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1774 backedges. 634 proven. 98 refuted. 0 times theorem prover too weak. 1042 trivial. 0 not checked. [2020-10-13 08:49:05,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885164258] [2020-10-13 08:49:05,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:05,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:05,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919629721] [2020-10-13 08:49:05,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:05,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:05,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:05,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:05,754 INFO L87 Difference]: Start difference. First operand 1705 states and 1837 transitions. Second operand 8 states. [2020-10-13 08:49:07,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:07,388 INFO L93 Difference]: Finished difference Result 3493 states and 3783 transitions. [2020-10-13 08:49:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:49:07,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 800 [2020-10-13 08:49:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:07,395 INFO L225 Difference]: With dead ends: 3493 [2020-10-13 08:49:07,396 INFO L226 Difference]: Without dead ends: 1901 [2020-10-13 08:49:07,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:49:07,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2020-10-13 08:49:07,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1889. [2020-10-13 08:49:07,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1889 states. [2020-10-13 08:49:07,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2025 transitions. [2020-10-13 08:49:07,443 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2025 transitions. Word has length 800 [2020-10-13 08:49:07,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:07,445 INFO L479 AbstractCegarLoop]: Abstraction has 1889 states and 2025 transitions. [2020-10-13 08:49:07,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:49:07,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2025 transitions. [2020-10-13 08:49:07,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2020-10-13 08:49:07,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:07,456 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-13 08:49:07,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:49:07,456 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:07,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:07,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1305890494, now seen corresponding path program 1 times [2020-10-13 08:49:07,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:07,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103033849] [2020-10-13 08:49:07,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:07,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:07,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:10,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:10,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 921 [2020-10-13 08:49:10,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:10,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3270 [2020-10-13 08:49:10,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:10,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:49:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-13 08:49:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 08:49:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:11,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:11,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:11,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:11,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:11,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:11,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:11,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:11,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:11,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:11,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:11,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:11,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:11,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:49:11,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:11,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:11,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:11,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:11,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:11,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:49:11,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:11,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:11,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:11,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:11,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:11,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:11,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:49:11,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:49:11,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:11,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:11,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:11,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:49:11,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:49:11,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:11,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:11,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:49:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:11,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:11,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:11,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:11,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:11,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-13 08:49:11,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 08:49:11,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:11,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:49:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:11,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:11,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:12,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:12,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-13 08:49:12,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:49:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:49:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:12,452 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-10-13 08:49:12,616 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-10-13 08:49:12,785 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-13 08:49:13,017 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-13 08:49:13,178 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-10-13 08:49:13,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-13 08:49:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:13,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:13,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:49:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:49:13,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:49:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2298 backedges. 759 proven. 98 refuted. 0 times theorem prover too weak. 1441 trivial. 0 not checked. [2020-10-13 08:49:15,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103033849] [2020-10-13 08:49:15,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:15,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:49:15,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51265538] [2020-10-13 08:49:15,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:49:15,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:15,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:49:15,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:49:15,249 INFO L87 Difference]: Start difference. First operand 1889 states and 2025 transitions. Second operand 13 states. [2020-10-13 08:49:15,797 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-13 08:49:16,002 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-13 08:49:16,234 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-13 08:49:16,422 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-13 08:49:16,889 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-13 08:49:17,192 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2020-10-13 08:49:18,059 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2020-10-13 08:49:18,306 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-10-13 08:49:18,589 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-10-13 08:49:18,814 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-10-13 08:49:19,215 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2020-10-13 08:49:19,559 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2020-10-13 08:49:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:19,931 INFO L93 Difference]: Finished difference Result 3855 states and 4154 transitions. [2020-10-13 08:49:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:49:19,937 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 899 [2020-10-13 08:49:19,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:19,945 INFO L225 Difference]: With dead ends: 3855 [2020-10-13 08:49:19,945 INFO L226 Difference]: Without dead ends: 1971 [2020-10-13 08:49:19,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:49:19,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2020-10-13 08:49:19,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1965. [2020-10-13 08:49:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-10-13 08:49:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2104 transitions. [2020-10-13 08:49:19,994 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2104 transitions. Word has length 899 [2020-10-13 08:49:19,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:19,995 INFO L479 AbstractCegarLoop]: Abstraction has 1965 states and 2104 transitions. [2020-10-13 08:49:19,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:49:19,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2104 transitions. [2020-10-13 08:49:20,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2020-10-13 08:49:20,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:20,009 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2020-10-13 08:49:20,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:49:20,010 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:20,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:20,011 INFO L82 PathProgramCache]: Analyzing trace with hash 4641222, now seen corresponding path program 1 times [2020-10-13 08:49:20,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:20,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929716869] [2020-10-13 08:49:20,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:20,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:21,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:23,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:23,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 999 [2020-10-13 08:49:23,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3632 [2020-10-13 08:49:23,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-13 08:49:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 283 [2020-10-13 08:49:23,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:23,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:24,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:24,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:24,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:24,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:49:24,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:24,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:24,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:49:24,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:24,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:49:24,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 08:49:24,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:24,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:49:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:24,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:49:24,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:24,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:24,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:49:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:49:24,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:49:24,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:49:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:49:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:24,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 08:49:24,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:49:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:49:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:49:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:49:24,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:49:24,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:49:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 1478 proven. 6 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-13 08:49:25,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929716869] [2020-10-13 08:49:25,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:25,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:49:25,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446440739] [2020-10-13 08:49:25,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:49:25,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:25,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:49:25,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:49:25,162 INFO L87 Difference]: Start difference. First operand 1965 states and 2104 transitions. Second operand 10 states. [2020-10-13 08:49:27,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:27,650 INFO L93 Difference]: Finished difference Result 4757 states and 5205 transitions. [2020-10-13 08:49:27,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 08:49:27,651 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 975 [2020-10-13 08:49:27,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:27,661 INFO L225 Difference]: With dead ends: 4757 [2020-10-13 08:49:27,661 INFO L226 Difference]: Without dead ends: 2905 [2020-10-13 08:49:27,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-10-13 08:49:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2020-10-13 08:49:27,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 2527. [2020-10-13 08:49:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2527 states. [2020-10-13 08:49:27,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 2767 transitions. [2020-10-13 08:49:27,720 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 2767 transitions. Word has length 975 [2020-10-13 08:49:27,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:27,722 INFO L479 AbstractCegarLoop]: Abstraction has 2527 states and 2767 transitions. [2020-10-13 08:49:27,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:49:27,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 2767 transitions. [2020-10-13 08:49:27,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2020-10-13 08:49:27,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:27,736 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:27,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:49:27,736 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:27,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:27,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1657276074, now seen corresponding path program 1 times [2020-10-13 08:49:27,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:27,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117479253] [2020-10-13 08:49:27,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:28,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:28,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:31,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1065 [2020-10-13 08:49:33,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:33,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5175 [2020-10-13 08:49:33,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:33,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1038 [2020-10-13 08:49:33,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:49:33,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:33,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:49:33,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:33,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:33,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:33,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:33,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:33,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:33,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:49:33,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 08:49:33,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:49:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:33,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:49:33,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:49:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:49:33,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:33,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:33,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:49:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:33,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 08:49:33,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:49:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 08:49:33,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-13 08:49:33,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:49:33,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3021 backedges. 173 proven. 8 refuted. 0 times theorem prover too weak. 2840 trivial. 0 not checked. [2020-10-13 08:49:34,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117479253] [2020-10-13 08:49:34,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:34,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:34,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086995152] [2020-10-13 08:49:34,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:34,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:34,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:34,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:34,479 INFO L87 Difference]: Start difference. First operand 2527 states and 2767 transitions. Second operand 5 states. [2020-10-13 08:49:35,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:35,213 INFO L93 Difference]: Finished difference Result 4958 states and 5462 transitions. [2020-10-13 08:49:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:35,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1041 [2020-10-13 08:49:35,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:35,223 INFO L225 Difference]: With dead ends: 4958 [2020-10-13 08:49:35,223 INFO L226 Difference]: Without dead ends: 2533 [2020-10-13 08:49:35,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:35,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2020-10-13 08:49:35,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 2525. [2020-10-13 08:49:35,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2525 states. [2020-10-13 08:49:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 2756 transitions. [2020-10-13 08:49:35,282 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 2756 transitions. Word has length 1041 [2020-10-13 08:49:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:35,283 INFO L479 AbstractCegarLoop]: Abstraction has 2525 states and 2756 transitions. [2020-10-13 08:49:35,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 2756 transitions. [2020-10-13 08:49:35,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2020-10-13 08:49:35,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:35,301 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:49:35,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:49:35,301 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:35,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:35,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1879832394, now seen corresponding path program 1 times [2020-10-13 08:49:35,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:35,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679758456] [2020-10-13 08:49:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:35,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:36,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:36,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1113 [2020-10-13 08:49:40,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4728 [2020-10-13 08:49:40,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-13 08:49:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 08:49:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:40,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:40,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:40,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:40,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:40,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:40,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:40,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:40,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:40,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:40,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:40,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:49:40,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:40,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:49:40,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:49:40,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:40,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:49:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:40,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:49:40,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:40,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:49:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:49:40,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:49:40,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:49:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:40,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 08:49:40,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:49:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:49:40,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:49:40,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 08:49:40,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:40,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-13 08:49:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:40,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:40,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:49:40,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:40,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:49:40,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:49:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:41,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3681 backedges. 942 proven. 2 refuted. 0 times theorem prover too weak. 2737 trivial. 0 not checked. [2020-10-13 08:49:41,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679758456] [2020-10-13 08:49:41,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:41,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:49:41,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623773440] [2020-10-13 08:49:41,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:49:41,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:41,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:49:41,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:49:41,416 INFO L87 Difference]: Start difference. First operand 2525 states and 2756 transitions. Second operand 7 states. [2020-10-13 08:49:43,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:43,244 INFO L93 Difference]: Finished difference Result 5499 states and 6045 transitions. [2020-10-13 08:49:43,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:49:43,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1087 [2020-10-13 08:49:43,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:43,256 INFO L225 Difference]: With dead ends: 5499 [2020-10-13 08:49:43,256 INFO L226 Difference]: Without dead ends: 3087 [2020-10-13 08:49:43,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:49:43,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2020-10-13 08:49:43,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 2897. [2020-10-13 08:49:43,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2897 states. [2020-10-13 08:49:43,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 3161 transitions. [2020-10-13 08:49:43,320 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 3161 transitions. Word has length 1087 [2020-10-13 08:49:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:43,321 INFO L479 AbstractCegarLoop]: Abstraction has 2897 states and 3161 transitions. [2020-10-13 08:49:43,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:49:43,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 3161 transitions. [2020-10-13 08:49:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1106 [2020-10-13 08:49:43,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:43,338 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 08:49:43,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:49:43,339 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:43,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:43,339 INFO L82 PathProgramCache]: Analyzing trace with hash 676267250, now seen corresponding path program 1 times [2020-10-13 08:49:43,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:43,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565437940] [2020-10-13 08:49:43,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:43,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:44,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:46,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1131 [2020-10-13 08:49:48,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:49:48,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-13 08:49:48,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1003 [2020-10-13 08:49:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 08:49:48,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:48,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:48,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:48,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:48,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:48,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:48,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:48,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:48,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:49:48,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:48,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:49:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:48,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:49:48,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:49:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:49:48,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:49:48,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:49:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:49,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:49,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:49,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:49:49,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:49:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:49,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:49,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 08:49:49,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:49,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 08:49:49,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:49:49,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:49,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2020-10-13 08:49:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:49,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:49,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:49:49,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:49,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:49:49,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:49:49,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3722 backedges. 942 proven. 2 refuted. 0 times theorem prover too weak. 2778 trivial. 0 not checked. [2020-10-13 08:49:49,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565437940] [2020-10-13 08:49:49,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:49,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:49:49,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864721596] [2020-10-13 08:49:49,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:49:49,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:49,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:49:49,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:49:49,784 INFO L87 Difference]: Start difference. First operand 2897 states and 3161 transitions. Second operand 7 states. [2020-10-13 08:49:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:51,642 INFO L93 Difference]: Finished difference Result 6789 states and 7527 transitions. [2020-10-13 08:49:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:49:51,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1105 [2020-10-13 08:49:51,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:51,656 INFO L225 Difference]: With dead ends: 6789 [2020-10-13 08:49:51,656 INFO L226 Difference]: Without dead ends: 4005 [2020-10-13 08:49:51,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:49:51,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4005 states. [2020-10-13 08:49:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4005 to 3627. [2020-10-13 08:49:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3627 states. [2020-10-13 08:49:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 3942 transitions. [2020-10-13 08:49:51,734 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 3942 transitions. Word has length 1105 [2020-10-13 08:49:51,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:51,735 INFO L479 AbstractCegarLoop]: Abstraction has 3627 states and 3942 transitions. [2020-10-13 08:49:51,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:49:51,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 3942 transitions. [2020-10-13 08:49:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1107 [2020-10-13 08:49:51,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:51,753 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1] [2020-10-13 08:49:51,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:49:51,753 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:51,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:51,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1643383167, now seen corresponding path program 1 times [2020-10-13 08:49:51,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:51,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944165209] [2020-10-13 08:49:51,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:52,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1130 [2020-10-13 08:49:57,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:57,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 08:49:57,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:57,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-13 08:49:57,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-13 08:49:57,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:57,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:57,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:57,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:49:57,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:57,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:57,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:57,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:57,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:57,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:57,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:57,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:49:57,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:57,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:49:57,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:49:57,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:57,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:49:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:49:57,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 08:49:57,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-13 08:49:57,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-13 08:49:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:49:57,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 08:49:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 08:49:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2020-10-13 08:49:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:57,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 08:49:57,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:49:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:57,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2020-10-13 08:49:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:49:57,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:49:57,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:49:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3415 backedges. 807 proven. 228 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2020-10-13 08:49:58,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944165209] [2020-10-13 08:49:58,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:58,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:58,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664295953] [2020-10-13 08:49:58,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:58,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:58,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:58,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:58,703 INFO L87 Difference]: Start difference. First operand 3627 states and 3942 transitions. Second operand 8 states. [2020-10-13 08:50:00,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:00,100 INFO L93 Difference]: Finished difference Result 7167 states and 7803 transitions. [2020-10-13 08:50:00,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:50:00,100 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1106 [2020-10-13 08:50:00,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:00,124 INFO L225 Difference]: With dead ends: 7167 [2020-10-13 08:50:00,124 INFO L226 Difference]: Without dead ends: 3653 [2020-10-13 08:50:00,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:50:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3653 states. [2020-10-13 08:50:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3653 to 3627. [2020-10-13 08:50:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3627 states. [2020-10-13 08:50:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 3940 transitions. [2020-10-13 08:50:00,203 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 3940 transitions. Word has length 1106 [2020-10-13 08:50:00,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:00,204 INFO L479 AbstractCegarLoop]: Abstraction has 3627 states and 3940 transitions. [2020-10-13 08:50:00,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:50:00,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 3940 transitions. [2020-10-13 08:50:00,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1109 [2020-10-13 08:50:00,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:00,224 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:50:00,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:50:00,224 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:00,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1066676917, now seen corresponding path program 1 times [2020-10-13 08:50:00,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:00,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698035629] [2020-10-13 08:50:00,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:00,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:00,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:01,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1134 [2020-10-13 08:50:05,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:50:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-13 08:50:05,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-13 08:50:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-13 08:50:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:05,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:05,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:05,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:05,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:05,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:05,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:05,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:05,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:05,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:05,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:50:05,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:05,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:05,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:05,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:05,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:05,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:05,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:05,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:05,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:05,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:05,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:05,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:05,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:50:05,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:05,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:05,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:05,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:05,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:05,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:50:05,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:05,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:05,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:50:05,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:05,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:50:05,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:05,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-13 08:50:05,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 08:50:05,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:05,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 811 [2020-10-13 08:50:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:06,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:06,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:06,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:06,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:06,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 08:50:06,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:06,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:06,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:50:06,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:06,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:06,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 990 [2020-10-13 08:50:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:06,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:06,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:50:06,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:50:06,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:50:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3728 backedges. 861 proven. 228 refuted. 0 times theorem prover too weak. 2639 trivial. 0 not checked. [2020-10-13 08:50:06,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698035629] [2020-10-13 08:50:06,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:06,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:06,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749655419] [2020-10-13 08:50:06,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:06,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:06,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:06,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:06,688 INFO L87 Difference]: Start difference. First operand 3627 states and 3940 transitions. Second operand 7 states. [2020-10-13 08:50:08,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:08,032 INFO L93 Difference]: Finished difference Result 7157 states and 7787 transitions. [2020-10-13 08:50:08,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:50:08,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1108 [2020-10-13 08:50:08,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:08,040 INFO L225 Difference]: With dead ends: 7157 [2020-10-13 08:50:08,041 INFO L226 Difference]: Without dead ends: 3643 [2020-10-13 08:50:08,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:50:08,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2020-10-13 08:50:08,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3629. [2020-10-13 08:50:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3629 states. [2020-10-13 08:50:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 3937 transitions. [2020-10-13 08:50:08,105 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 3937 transitions. Word has length 1108 [2020-10-13 08:50:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:08,106 INFO L479 AbstractCegarLoop]: Abstraction has 3629 states and 3937 transitions. [2020-10-13 08:50:08,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 3937 transitions. [2020-10-13 08:50:08,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1116 [2020-10-13 08:50:08,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:08,122 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:50:08,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:50:08,123 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:08,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:08,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1610570818, now seen corresponding path program 1 times [2020-10-13 08:50:08,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:08,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434850516] [2020-10-13 08:50:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:11,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:11,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1141 [2020-10-13 08:50:13,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:50:13,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-13 08:50:13,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1013 [2020-10-13 08:50:13,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 08:50:13,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:13,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:50:13,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:13,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:13,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:13,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:13,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:13,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:50:13,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:13,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:13,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:13,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:13,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:13,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:13,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:13,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:50:13,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:13,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:50:13,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:13,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:13,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:50:13,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:13,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:13,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:13,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:50:13,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:13,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:13,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 08:50:13,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:13,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-13 08:50:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:13,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:13,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:13,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:50:13,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:13,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 08:50:13,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:13,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:13,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:13,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:50:13,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3742 backedges. 942 proven. 2 refuted. 0 times theorem prover too weak. 2798 trivial. 0 not checked. [2020-10-13 08:50:14,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434850516] [2020-10-13 08:50:14,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:14,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:14,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91410733] [2020-10-13 08:50:14,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:14,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:14,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:14,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:14,491 INFO L87 Difference]: Start difference. First operand 3629 states and 3937 transitions. Second operand 7 states. [2020-10-13 08:50:15,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:15,712 INFO L93 Difference]: Finished difference Result 8082 states and 8839 transitions. [2020-10-13 08:50:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:50:15,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1115 [2020-10-13 08:50:15,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:15,725 INFO L225 Difference]: With dead ends: 8082 [2020-10-13 08:50:15,726 INFO L226 Difference]: Without dead ends: 4566 [2020-10-13 08:50:15,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:50:15,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2020-10-13 08:50:15,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4003. [2020-10-13 08:50:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4003 states. [2020-10-13 08:50:15,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4003 states to 4003 states and 4340 transitions. [2020-10-13 08:50:15,812 INFO L78 Accepts]: Start accepts. Automaton has 4003 states and 4340 transitions. Word has length 1115 [2020-10-13 08:50:15,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:15,814 INFO L479 AbstractCegarLoop]: Abstraction has 4003 states and 4340 transitions. [2020-10-13 08:50:15,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 4003 states and 4340 transitions. [2020-10-13 08:50:15,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1136 [2020-10-13 08:50:15,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:15,834 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:15,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:50:15,835 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:15,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:15,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1476367310, now seen corresponding path program 1 times [2020-10-13 08:50:15,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:15,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596320728] [2020-10-13 08:50:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:16,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:16,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1159 [2020-10-13 08:50:21,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:21,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-13 08:50:21,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:50:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 850 [2020-10-13 08:50:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 08:50:21,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:21,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:50:21,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:21,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:21,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:21,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:50:21,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:21,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:21,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:50:21,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:50:21,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:50:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:50:21,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:50:21,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:21,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-13 08:50:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:21,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:50:21,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:21,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 08:50:21,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:21,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:21,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 08:50:21,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:21,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-13 08:50:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:21,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:21,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:22,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:22,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:22,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:50:22,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-13 08:50:22,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:50:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:50:22,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:22,435 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-10-13 08:50:22,576 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2020-10-13 08:50:22,732 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-10-13 08:50:22,879 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-10-13 08:50:23,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2020-10-13 08:50:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:23,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:23,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:23,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:50:23,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:23,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:50:23,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:50:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:23,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:25,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3499 backedges. 1021 proven. 98 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2020-10-13 08:50:25,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596320728] [2020-10-13 08:50:25,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:25,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:50:25,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938204184] [2020-10-13 08:50:25,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:50:25,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:25,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:50:25,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:50:25,315 INFO L87 Difference]: Start difference. First operand 4003 states and 4340 transitions. Second operand 13 states. [2020-10-13 08:50:26,102 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-13 08:50:26,359 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-10-13 08:50:26,691 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-10-13 08:50:26,950 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2020-10-13 08:50:27,255 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-13 08:50:27,567 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-10-13 08:50:27,824 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2020-10-13 08:50:28,104 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2020-10-13 08:50:29,139 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2020-10-13 08:50:29,494 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2020-10-13 08:50:29,842 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2020-10-13 08:50:30,150 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 54 [2020-10-13 08:50:30,388 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 53 [2020-10-13 08:50:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:30,639 INFO L93 Difference]: Finished difference Result 8101 states and 8781 transitions. [2020-10-13 08:50:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 08:50:30,642 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1135 [2020-10-13 08:50:30,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:30,655 INFO L225 Difference]: With dead ends: 8101 [2020-10-13 08:50:30,655 INFO L226 Difference]: Without dead ends: 3655 [2020-10-13 08:50:30,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:50:30,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3655 states. [2020-10-13 08:50:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3655 to 3633. [2020-10-13 08:50:30,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3633 states. [2020-10-13 08:50:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 3927 transitions. [2020-10-13 08:50:30,749 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 3927 transitions. Word has length 1135 [2020-10-13 08:50:30,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:30,750 INFO L479 AbstractCegarLoop]: Abstraction has 3633 states and 3927 transitions. [2020-10-13 08:50:30,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:50:30,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 3927 transitions. [2020-10-13 08:50:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2020-10-13 08:50:30,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:30,768 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 08:50:30,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:50:30,768 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:30,769 INFO L82 PathProgramCache]: Analyzing trace with hash -2017402146, now seen corresponding path program 1 times [2020-10-13 08:50:30,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:30,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828245603] [2020-10-13 08:50:30,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:31,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:31,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:32,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:34,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1165 [2020-10-13 08:50:36,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:50:36,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-13 08:50:36,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1138 [2020-10-13 08:50:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:50:36,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:36,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:36,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:36,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:36,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:36,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:36,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:36,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:36,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:36,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:36,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:36,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:50:36,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:36,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:50:36,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:50:36,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:50:36,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:36,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:36,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-13 08:50:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:36,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:36,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:36,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:50:36,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:36,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 08:50:36,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:36,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-13 08:50:36,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3837 backedges. 195 proven. 9 refuted. 0 times theorem prover too weak. 3633 trivial. 0 not checked. [2020-10-13 08:50:37,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828245603] [2020-10-13 08:50:37,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:37,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:50:37,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358023989] [2020-10-13 08:50:37,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:50:37,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:37,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:50:37,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:50:37,387 INFO L87 Difference]: Start difference. First operand 3633 states and 3927 transitions. Second operand 5 states. [2020-10-13 08:50:38,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:38,179 INFO L93 Difference]: Finished difference Result 7173 states and 7785 transitions. [2020-10-13 08:50:38,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:50:38,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1139 [2020-10-13 08:50:38,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:38,188 INFO L225 Difference]: With dead ends: 7173 [2020-10-13 08:50:38,188 INFO L226 Difference]: Without dead ends: 3643 [2020-10-13 08:50:38,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:50:38,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2020-10-13 08:50:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3631. [2020-10-13 08:50:38,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3631 states. [2020-10-13 08:50:38,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 3914 transitions. [2020-10-13 08:50:38,251 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 3914 transitions. Word has length 1139 [2020-10-13 08:50:38,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:38,253 INFO L479 AbstractCegarLoop]: Abstraction has 3631 states and 3914 transitions. [2020-10-13 08:50:38,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:50:38,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 3914 transitions. [2020-10-13 08:50:38,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1170 [2020-10-13 08:50:38,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:38,274 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:38,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:50:38,274 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:38,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:38,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1656013898, now seen corresponding path program 1 times [2020-10-13 08:50:38,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:38,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852485820] [2020-10-13 08:50:38,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:38,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:39,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:41,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:43,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:43,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1195 [2020-10-13 08:50:43,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:50:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-13 08:50:43,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1168 [2020-10-13 08:50:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:50:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:43,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:43,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:43,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:43,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:43,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:43,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:43,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:43,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:43,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:43,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:43,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:43,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:43,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:43,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:43,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:43,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:43,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:43,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:43,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:43,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:43,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:43,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:43,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:43,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:43,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:43,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:43,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:43,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:43,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:43,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:43,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:43,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:43,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:43,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:43,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:43,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:43,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:50:43,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:43,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:43,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:43,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:43,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:43,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:43,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:43,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:50:43,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:43,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:43,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:43,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:43,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:43,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:43,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:50:43,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:43,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:43,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:44,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:50:44,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:44,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:50:44,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:44,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:44,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-13 08:50:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:44,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:44,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:44,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:50:44,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:44,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:50:44,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 08:50:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3930 backedges. 195 proven. 9 refuted. 0 times theorem prover too weak. 3726 trivial. 0 not checked. [2020-10-13 08:50:44,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852485820] [2020-10-13 08:50:44,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:44,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:50:44,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740269305] [2020-10-13 08:50:44,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:50:44,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:44,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:50:44,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:50:44,845 INFO L87 Difference]: Start difference. First operand 3631 states and 3914 transitions. Second operand 5 states. [2020-10-13 08:50:45,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:45,954 INFO L93 Difference]: Finished difference Result 7709 states and 8372 transitions. [2020-10-13 08:50:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:50:45,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1169 [2020-10-13 08:50:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:45,963 INFO L225 Difference]: With dead ends: 7709 [2020-10-13 08:50:45,964 INFO L226 Difference]: Without dead ends: 4191 [2020-10-13 08:50:45,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:50:45,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2020-10-13 08:50:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 4185. [2020-10-13 08:50:46,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4185 states. [2020-10-13 08:50:46,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4185 states to 4185 states and 4535 transitions. [2020-10-13 08:50:46,037 INFO L78 Accepts]: Start accepts. Automaton has 4185 states and 4535 transitions. Word has length 1169 [2020-10-13 08:50:46,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:46,039 INFO L479 AbstractCegarLoop]: Abstraction has 4185 states and 4535 transitions. [2020-10-13 08:50:46,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:50:46,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4185 states and 4535 transitions. [2020-10-13 08:50:46,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1229 [2020-10-13 08:50:46,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:46,059 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:50:46,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:50:46,060 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:46,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:46,060 INFO L82 PathProgramCache]: Analyzing trace with hash -950466595, now seen corresponding path program 1 times [2020-10-13 08:50:46,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:46,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896165595] [2020-10-13 08:50:46,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:46,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:46,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:47,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1256 [2020-10-13 08:50:51,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:50:51,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-13 08:50:51,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1013 [2020-10-13 08:50:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-13 08:50:51,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:51,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:51,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:51,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:51,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:51,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:51,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:51,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:50:51,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:51,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:51,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:51,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:50:51,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:51,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:51,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:50:51,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:50:51,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:50:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:50:51,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:50:51,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 08:50:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-13 08:50:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:50:51,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:50:51,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:51,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:50:51,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:50:51,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:51,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1110 [2020-10-13 08:50:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:51,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:51,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:51,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:50:51,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:51,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:50:51,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:51,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:51,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:50:51,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:51,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:52,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 1071 proven. 98 refuted. 0 times theorem prover too weak. 3520 trivial. 0 not checked. [2020-10-13 08:50:52,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896165595] [2020-10-13 08:50:52,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:52,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:50:52,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426845371] [2020-10-13 08:50:52,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:50:52,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:52,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:50:52,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:50:52,606 INFO L87 Difference]: Start difference. First operand 4185 states and 4535 transitions. Second operand 7 states. [2020-10-13 08:50:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:54,022 INFO L93 Difference]: Finished difference Result 9745 states and 10715 transitions. [2020-10-13 08:50:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:50:54,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1228 [2020-10-13 08:50:54,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:54,037 INFO L225 Difference]: With dead ends: 9745 [2020-10-13 08:50:54,038 INFO L226 Difference]: Without dead ends: 5673 [2020-10-13 08:50:54,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:50:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5673 states. [2020-10-13 08:50:54,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5673 to 5665. [2020-10-13 08:50:54,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5665 states. [2020-10-13 08:50:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5665 states to 5665 states and 6228 transitions. [2020-10-13 08:50:54,152 INFO L78 Accepts]: Start accepts. Automaton has 5665 states and 6228 transitions. Word has length 1228 [2020-10-13 08:50:54,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:54,153 INFO L479 AbstractCegarLoop]: Abstraction has 5665 states and 6228 transitions. [2020-10-13 08:50:54,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:50:54,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5665 states and 6228 transitions. [2020-10-13 08:50:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1267 [2020-10-13 08:50:54,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:54,179 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 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, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:54,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:50:54,180 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:54,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:54,180 INFO L82 PathProgramCache]: Analyzing trace with hash 2035230337, now seen corresponding path program 2 times [2020-10-13 08:50:54,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:54,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948525998] [2020-10-13 08:50:54,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:54,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:55,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:59,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1294 [2020-10-13 08:50:59,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:50:59,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5133 [2020-10-13 08:50:59,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:59,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-13 08:50:59,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:50:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:59,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:59,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:59,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:59,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:50:59,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:59,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:59,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:59,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:59,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:59,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:59,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:59,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:50:59,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:59,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:59,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:59,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:59,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:59,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:59,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:59,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:50:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:59,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:59,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:50:59,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:50:59,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:59,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:50:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:59,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:59,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:50:59,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:59,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:50:59,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:59,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:59,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:59,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:59,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:50:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:59,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:59,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:50:59,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:50:59,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:59,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:50:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:59,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:59,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:50:59,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:59,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:50:59,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:59,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:59,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:50:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:59,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:59,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:59,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:50:59,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:59,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:50:59,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:59,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:59,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:59,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:50:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:59,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:00,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:00,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:00,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:00,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 08:51:00,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:51:00,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:00,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:51:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:00,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:00,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:00,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:51:00,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:51:00,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:51:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:51:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:00,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-13 08:51:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:00,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:00,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:00,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:00,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:00,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 08:51:00,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:00,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:00,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:51:00,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:00,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:00,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1148 [2020-10-13 08:51:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:00,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:00,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:00,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:51:00,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:51:00,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:51:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4761 backedges. 977 proven. 207 refuted. 0 times theorem prover too weak. 3577 trivial. 0 not checked. [2020-10-13 08:51:01,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948525998] [2020-10-13 08:51:01,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:01,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:51:01,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035369511] [2020-10-13 08:51:01,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:51:01,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:01,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:51:01,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:51:01,007 INFO L87 Difference]: Start difference. First operand 5665 states and 6228 transitions. Second operand 8 states. [2020-10-13 08:51:03,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:03,228 INFO L93 Difference]: Finished difference Result 12139 states and 13454 transitions. [2020-10-13 08:51:03,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:51:03,231 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1266 [2020-10-13 08:51:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:03,254 INFO L225 Difference]: With dead ends: 12139 [2020-10-13 08:51:03,254 INFO L226 Difference]: Without dead ends: 6587 [2020-10-13 08:51:03,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:51:03,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6587 states. [2020-10-13 08:51:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6587 to 6587. [2020-10-13 08:51:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6587 states. [2020-10-13 08:51:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6587 states to 6587 states and 7154 transitions. [2020-10-13 08:51:03,368 INFO L78 Accepts]: Start accepts. Automaton has 6587 states and 7154 transitions. Word has length 1266 [2020-10-13 08:51:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:03,369 INFO L479 AbstractCegarLoop]: Abstraction has 6587 states and 7154 transitions. [2020-10-13 08:51:03,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:51:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 6587 states and 7154 transitions. [2020-10-13 08:51:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2020-10-13 08:51:03,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:03,396 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:51:03,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:51:03,397 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:03,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:03,398 INFO L82 PathProgramCache]: Analyzing trace with hash 925783293, now seen corresponding path program 1 times [2020-10-13 08:51:03,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:03,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908878602] [2020-10-13 08:51:03,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:03,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:04,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:04,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:05,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1414 [2020-10-13 08:51:08,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:51:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-13 08:51:08,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-13 08:51:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:51:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:08,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:51:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:51:08,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:51:08,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:51:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:51:08,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:51:08,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:51:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:51:08,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:51:08,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:51:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:08,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:08,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:51:08,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:08,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:51:08,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:51:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:08,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:09,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:09,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:51:09,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:09,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:51:09,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:09,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:09,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:09,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:09,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:09,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:51:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:09,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:09,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:09,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:51:09,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:09,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 08:51:09,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:09,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:09,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:51:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:09,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:09,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:09,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:09,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:09,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:51:09,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:09,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:09,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:09,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:09,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:09,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:51:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:09,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:09,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:09,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:51:09,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:09,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:51:09,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:51:09,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:09,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:51:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:09,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:09,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:09,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:51:09,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:09,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 08:51:09,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:51:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:51:09,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:09,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-13 08:51:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:09,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:09,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:09,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:09,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:09,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:51:09,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:51:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1266 [2020-10-13 08:51:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:09,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:09,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:09,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:51:09,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:51:09,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 08:51:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 5839 backedges. 1119 proven. 207 refuted. 0 times theorem prover too weak. 4513 trivial. 0 not checked. [2020-10-13 08:51:10,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908878602] [2020-10-13 08:51:10,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:10,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:51:10,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627511830] [2020-10-13 08:51:10,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:51:10,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:10,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:51:10,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:51:10,573 INFO L87 Difference]: Start difference. First operand 6587 states and 7154 transitions. Second operand 7 states.