/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:06:11,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:06:11,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:06:11,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:06:11,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:06:11,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:06:11,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:06:11,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:06:11,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:06:11,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:06:11,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:06:11,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:06:11,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:06:11,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:06:11,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:06:11,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:06:11,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:06:11,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:06:11,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:06:11,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:06:11,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:06:11,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:06:11,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:06:11,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:06:11,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:06:11,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:06:11,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:06:11,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:06:11,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:06:11,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:06:11,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:06:11,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:06:11,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:06:11,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:06:11,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:06:11,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:06:11,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:06:11,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:06:11,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:06:11,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:06:11,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:06:11,909 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 06:06:11,931 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:06:11,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:06:11,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:06:11,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:06:11,933 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:06:11,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:06:11,934 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:06:11,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:06:11,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:06:11,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:06:11,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:06:11,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:06:11,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:06:11,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:06:11,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:06:11,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:06:11,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:06:11,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:06:11,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:06:11,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:06:11,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:06:11,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:06:11,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:06:11,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:06:11,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:06:11,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:06:11,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:06:11,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:06:11,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:06:11,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:06:12,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:06:12,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:06:12,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:06:12,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:06:12,254 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:06:12,255 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2020-10-13 06:06:12,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea3356232/e10481704a344ec88f0c7450cbd640f6/FLAG1e23e27e8 [2020-10-13 06:06:12,914 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:06:12,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2020-10-13 06:06:12,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea3356232/e10481704a344ec88f0c7450cbd640f6/FLAG1e23e27e8 [2020-10-13 06:06:13,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea3356232/e10481704a344ec88f0c7450cbd640f6 [2020-10-13 06:06:13,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:06:13,189 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:06:13,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:06:13,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:06:13,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:06:13,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:13,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef5dd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13, skipping insertion in model container [2020-10-13 06:06:13,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:13,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:06:13,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:06:13,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:06:13,784 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:06:13,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:06:13,938 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:06:13,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13 WrapperNode [2020-10-13 06:06:13,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:06:13,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:06:13,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:06:13,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:06:13,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:13,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:14,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:14,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:14,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:14,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:14,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (1/1) ... [2020-10-13 06:06:14,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:06:14,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:06:14,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:06:14,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:06:14,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:06:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:06:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:06:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:06:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:06:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:06:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:06:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:06:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:06:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:06:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:06:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:06:15,337 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:06:15,337 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:06:15,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:15 BoogieIcfgContainer [2020-10-13 06:06:15,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:06:15,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:06:15,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:06:15,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:06:15,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:06:13" (1/3) ... [2020-10-13 06:06:15,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5267310c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:15, skipping insertion in model container [2020-10-13 06:06:15,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:13" (2/3) ... [2020-10-13 06:06:15,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5267310c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:15, skipping insertion in model container [2020-10-13 06:06:15,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:15" (3/3) ... [2020-10-13 06:06:15,353 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label51.c [2020-10-13 06:06:15,364 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:06:15,372 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:06:15,386 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:06:15,413 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:06:15,414 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:06:15,414 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:06:15,414 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:06:15,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:06:15,414 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:06:15,415 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:06:15,415 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:06:15,438 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:06:15,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 06:06:15,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:15,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:15,453 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:15,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:15,460 INFO L82 PathProgramCache]: Analyzing trace with hash 588022894, now seen corresponding path program 1 times [2020-10-13 06:06:15,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:15,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581301817] [2020-10-13 06:06:15,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:15,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:16,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:17,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:17,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 06:06:17,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1832 [2020-10-13 06:06:17,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:17,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:06:17,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:06:17,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:06:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 06:06:18,321 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:06:18,478 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2020-10-13 06:06:18,610 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2020-10-13 06:06:18,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:18,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:18,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:18,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:18,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:18,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:06:18,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:18,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:18,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:18,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:06:18,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:19,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581301817] [2020-10-13 06:06:19,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:06:19,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:06:19,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054697082] [2020-10-13 06:06:19,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:19,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:19,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:19,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:19,215 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 06:06:19,616 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-10-13 06:06:19,890 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-10-13 06:06:20,230 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2020-10-13 06:06:20,567 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2020-10-13 06:06:20,933 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:06:21,443 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-10-13 06:06:22,011 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 103 [2020-10-13 06:06:22,422 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2020-10-13 06:06:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:23,398 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:06:23,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:23,400 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2020-10-13 06:06:23,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:23,415 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:06:23,415 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:06:23,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:06:23,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:06:23,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:06:23,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:06:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:06:23,489 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 112 [2020-10-13 06:06:23,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:23,489 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:06:23,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:23,490 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:06:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 06:06:23,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:23,494 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:23,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:06:23,495 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:23,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:23,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1061211465, now seen corresponding path program 1 times [2020-10-13 06:06:23,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:23,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624725497] [2020-10-13 06:06:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:23,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:23,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:24,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:25,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:25,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 06:06:25,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1663 [2020-10-13 06:06:25,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:25,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:06:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:06:25,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:06:25,811 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-13 06:06:25,967 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2020-10-13 06:06:26,110 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 42 [2020-10-13 06:06:26,240 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2020-10-13 06:06:26,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:26,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:26,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:26,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:26,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:26,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:06:26,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:26,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:26,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:26,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:26,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:26,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:26,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:26,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:26,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:06:26,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:06:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:26,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624725497] [2020-10-13 06:06:26,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:26,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:26,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573359179] [2020-10-13 06:06:26,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:26,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:26,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:26,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:26,754 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:06:27,182 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:06:27,717 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:06:28,535 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:06:28,927 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:06:29,380 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:06:29,640 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:06:30,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:30,314 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:06:30,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:06:30,316 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2020-10-13 06:06:30,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:30,320 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:06:30,320 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:06:30,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:06:30,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:06:30,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:06:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:06:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:06:30,347 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 120 [2020-10-13 06:06:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:30,348 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:06:30,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:06:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-13 06:06:30,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:30,352 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:30,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:06:30,353 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:30,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:30,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1560322745, now seen corresponding path program 1 times [2020-10-13 06:06:30,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:30,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062616741] [2020-10-13 06:06:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:30,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:30,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:31,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:31,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:31,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 06:06:31,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:31,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-10-13 06:06:31,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:06:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:06:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:31,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:31,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:31,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:31,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:31,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:31,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:06:31,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:31,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:31,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:31,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:31,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:31,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:31,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:31,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:06:31,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:31,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:06:31,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:31,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:31,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:06:31,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:31,463 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:31,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062616741] [2020-10-13 06:06:31,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:31,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:31,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767863042] [2020-10-13 06:06:31,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:31,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:31,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:31,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:31,468 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:06:32,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:32,606 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 06:06:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:32,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-10-13 06:06:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:32,611 INFO L225 Difference]: With dead ends: 587 [2020-10-13 06:06:32,611 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 06:06:32,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 06:06:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 06:06:32,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:06:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 06:06:32,642 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 123 [2020-10-13 06:06:32,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:32,642 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 06:06:32,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 06:06:32,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 06:06:32,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:32,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:32,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:06:32,653 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:32,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:32,654 INFO L82 PathProgramCache]: Analyzing trace with hash -965094581, now seen corresponding path program 1 times [2020-10-13 06:06:32,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:32,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533828531] [2020-10-13 06:06:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:33,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:34,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:34,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 06:06:34,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1843 [2020-10-13 06:06:34,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:06:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:34,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,144 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:06:35,291 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:06:35,418 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-13 06:06:35,710 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 31 [2020-10-13 06:06:35,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:35,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:35,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:06:35,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:35,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:35,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:35,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:35,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 06:06:35,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:06:35,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:36,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533828531] [2020-10-13 06:06:36,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:36,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:36,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969013005] [2020-10-13 06:06:36,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:36,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:36,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:36,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:36,002 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 06:06:36,629 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:06:37,101 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:06:37,525 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:06:37,837 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:06:38,096 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:06:38,510 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2020-10-13 06:06:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:39,042 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 06:06:39,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:06:39,044 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 153 [2020-10-13 06:06:39,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:39,050 INFO L225 Difference]: With dead ends: 552 [2020-10-13 06:06:39,050 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 06:06:39,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:06:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 06:06:39,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 06:06:39,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 06:06:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 06:06:39,087 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 153 [2020-10-13 06:06:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:39,088 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 06:06:39,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 06:06:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-13 06:06:39,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:39,091 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:39,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:06:39,091 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:39,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1416580816, now seen corresponding path program 1 times [2020-10-13 06:06:39,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:39,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126712842] [2020-10-13 06:06:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:39,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:39,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:39,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:40,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:41,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:43,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:43,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-13 06:06:43,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:43,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4406 [2020-10-13 06:06:43,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:06:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:06:43,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:44,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:44,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:44,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:06:44,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:44,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:44,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:44,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:44,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:44,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:44,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:44,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:06:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:44,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:06:44,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:44,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 06:06:44,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:06:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:06:44,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126712842] [2020-10-13 06:06:44,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:44,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:06:44,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399525968] [2020-10-13 06:06:44,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:06:44,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:44,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:06:44,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:06:44,369 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 14 states. [2020-10-13 06:06:44,892 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2020-10-13 06:06:45,090 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-13 06:06:45,330 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-13 06:06:45,645 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:06:45,928 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:06:46,123 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:06:46,430 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-13 06:06:47,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:47,784 INFO L93 Difference]: Finished difference Result 718 states and 929 transitions. [2020-10-13 06:06:47,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:06:47,785 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 170 [2020-10-13 06:06:47,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:47,789 INFO L225 Difference]: With dead ends: 718 [2020-10-13 06:06:47,789 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:06:47,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:06:47,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:06:47,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 393. [2020-10-13 06:06:47,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-13 06:06:47,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 458 transitions. [2020-10-13 06:06:47,809 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 458 transitions. Word has length 170 [2020-10-13 06:06:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:47,809 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 458 transitions. [2020-10-13 06:06:47,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:06:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 458 transitions. [2020-10-13 06:06:47,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 06:06:47,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:47,813 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:47,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:06:47,813 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:47,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:47,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1710517665, now seen corresponding path program 1 times [2020-10-13 06:06:47,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:47,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231825625] [2020-10-13 06:06:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:47,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:47,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:48,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:49,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:49,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 06:06:49,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:49,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1896 [2020-10-13 06:06:49,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:06:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:06:49,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:50,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:06:50,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:50,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:50,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:50,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:50,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 06:06:50,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:06:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,583 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:50,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231825625] [2020-10-13 06:06:50,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:50,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:50,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973586293] [2020-10-13 06:06:50,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:50,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:50,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:50,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:50,586 INFO L87 Difference]: Start difference. First operand 393 states and 458 transitions. Second operand 13 states. [2020-10-13 06:06:51,505 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:06:51,905 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:06:52,136 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:06:52,360 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:06:52,632 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:06:52,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:52,963 INFO L93 Difference]: Finished difference Result 791 states and 969 transitions. [2020-10-13 06:06:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:52,964 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 175 [2020-10-13 06:06:52,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:52,968 INFO L225 Difference]: With dead ends: 791 [2020-10-13 06:06:52,968 INFO L226 Difference]: Without dead ends: 444 [2020-10-13 06:06:52,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:52,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-10-13 06:06:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2020-10-13 06:06:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-13 06:06:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 510 transitions. [2020-10-13 06:06:52,987 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 510 transitions. Word has length 175 [2020-10-13 06:06:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:52,987 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 510 transitions. [2020-10-13 06:06:52,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 510 transitions. [2020-10-13 06:06:52,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-13 06:06:52,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:52,991 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:52,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:06:52,991 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:52,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:52,992 INFO L82 PathProgramCache]: Analyzing trace with hash 948321566, now seen corresponding path program 1 times [2020-10-13 06:06:52,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:52,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010277088] [2020-10-13 06:06:52,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:53,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-13 06:06:55,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:06:55,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2421 [2020-10-13 06:06:55,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:06:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:06:55,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,856 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:06:56,015 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-10-13 06:06:56,143 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-13 06:06:56,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:56,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:56,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:56,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:56,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:56,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:56,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:56,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:56,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:56,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:56,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:56,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:56,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:56,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:56,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:56,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:56,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:56,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:56,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:56,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:56,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:56,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:56,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:56,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:06:56,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:56,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:06:56,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:06:56,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:06:56,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010277088] [2020-10-13 06:06:56,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:56,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:56,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598496573] [2020-10-13 06:06:56,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:56,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:56,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:56,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:56,789 INFO L87 Difference]: Start difference. First operand 444 states and 510 transitions. Second operand 13 states. [2020-10-13 06:06:57,423 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:06:57,619 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:06:57,981 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:06:58,411 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:06:58,677 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:06:59,082 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:06:59,452 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:06:59,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:59,942 INFO L93 Difference]: Finished difference Result 884 states and 1060 transitions. [2020-10-13 06:06:59,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:59,943 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 186 [2020-10-13 06:06:59,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:59,946 INFO L225 Difference]: With dead ends: 884 [2020-10-13 06:06:59,946 INFO L226 Difference]: Without dead ends: 506 [2020-10-13 06:06:59,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:06:59,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-10-13 06:06:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2020-10-13 06:06:59,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2020-10-13 06:06:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 578 transitions. [2020-10-13 06:06:59,966 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 578 transitions. Word has length 186 [2020-10-13 06:06:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:59,967 INFO L479 AbstractCegarLoop]: Abstraction has 506 states and 578 transitions. [2020-10-13 06:06:59,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:59,967 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 578 transitions. [2020-10-13 06:06:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-13 06:06:59,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:59,970 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:59,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:06:59,970 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:59,971 INFO L82 PathProgramCache]: Analyzing trace with hash 431947758, now seen corresponding path program 1 times [2020-10-13 06:06:59,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:59,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396275656] [2020-10-13 06:06:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:03,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:03,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-13 06:07:03,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:03,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3267 [2020-10-13 06:07:03,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:03,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:07:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:03,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:03,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:03,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:03,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:03,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:03,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:03,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:03,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:03,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:03,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:03,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:03,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:03,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:03,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:07:03,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:03,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:03,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:03,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:03,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:03,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:03,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:03,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:03,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:07:03,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:03,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:07:03,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:07:03,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:07:03,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396275656] [2020-10-13 06:07:03,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:03,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:03,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131041888] [2020-10-13 06:07:03,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:03,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:03,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:03,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:03,855 INFO L87 Difference]: Start difference. First operand 506 states and 578 transitions. Second operand 13 states. [2020-10-13 06:07:04,780 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:05,123 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:05,361 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:07:05,608 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:07:05,914 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:07:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:06,177 INFO L93 Difference]: Finished difference Result 1006 states and 1191 transitions. [2020-10-13 06:07:06,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:06,178 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 189 [2020-10-13 06:07:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:06,182 INFO L225 Difference]: With dead ends: 1006 [2020-10-13 06:07:06,182 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:07:06,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:07:06,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 544. [2020-10-13 06:07:06,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-13 06:07:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 623 transitions. [2020-10-13 06:07:06,211 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 623 transitions. Word has length 189 [2020-10-13 06:07:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:06,212 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 623 transitions. [2020-10-13 06:07:06,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 623 transitions. [2020-10-13 06:07:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-13 06:07:06,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:06,218 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:06,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:07:06,218 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:06,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:06,219 INFO L82 PathProgramCache]: Analyzing trace with hash -951586798, now seen corresponding path program 1 times [2020-10-13 06:07:06,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:06,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885341226] [2020-10-13 06:07:06,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:06,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:07,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-13 06:07:07,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:07,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1698 [2020-10-13 06:07:07,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:07,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:07,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:07:07,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:08,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:08,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:08,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:08,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:08,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:07:08,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:07:08,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:07:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,515 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:07:08,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885341226] [2020-10-13 06:07:08,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:08,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:08,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397759036] [2020-10-13 06:07:08,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:08,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:08,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:08,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:08,518 INFO L87 Difference]: Start difference. First operand 544 states and 623 transitions. Second operand 13 states. [2020-10-13 06:07:09,406 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:09,720 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:09,969 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:07:10,193 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:07:10,505 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:07:10,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:10,807 INFO L93 Difference]: Finished difference Result 1084 states and 1283 transitions. [2020-10-13 06:07:10,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:07:10,808 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 192 [2020-10-13 06:07:10,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:10,812 INFO L225 Difference]: With dead ends: 1084 [2020-10-13 06:07:10,812 INFO L226 Difference]: Without dead ends: 589 [2020-10-13 06:07:10,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-10-13 06:07:10,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 587. [2020-10-13 06:07:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-13 06:07:10,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 673 transitions. [2020-10-13 06:07:10,838 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 673 transitions. Word has length 192 [2020-10-13 06:07:10,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:10,839 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 673 transitions. [2020-10-13 06:07:10,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:10,839 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 673 transitions. [2020-10-13 06:07:10,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 06:07:10,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:10,843 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:10,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:07:10,843 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:10,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:10,843 INFO L82 PathProgramCache]: Analyzing trace with hash 590452167, now seen corresponding path program 1 times [2020-10-13 06:07:10,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:10,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652084748] [2020-10-13 06:07:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:10,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-13 06:07:13,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:13,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2361 [2020-10-13 06:07:13,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:07:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:13,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:13,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:13,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:13,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:13,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:13,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:13,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:13,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:13,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:13,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:13,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:13,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:13,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:13,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:07:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:13,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:07:13,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:13,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:13,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:13,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:13,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:07:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:13,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:07:13,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:13,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:13,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:13,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:13,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:07:13,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:07:13,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652084748] [2020-10-13 06:07:13,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:13,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:13,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693431350] [2020-10-13 06:07:13,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:13,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:13,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:13,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:13,820 INFO L87 Difference]: Start difference. First operand 587 states and 673 transitions. Second operand 13 states. [2020-10-13 06:07:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:15,586 INFO L93 Difference]: Finished difference Result 1166 states and 1379 transitions. [2020-10-13 06:07:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:15,592 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 196 [2020-10-13 06:07:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:15,596 INFO L225 Difference]: With dead ends: 1166 [2020-10-13 06:07:15,596 INFO L226 Difference]: Without dead ends: 628 [2020-10-13 06:07:15,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:15,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-10-13 06:07:15,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 587. [2020-10-13 06:07:15,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-13 06:07:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 673 transitions. [2020-10-13 06:07:15,620 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 673 transitions. Word has length 196 [2020-10-13 06:07:15,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:15,621 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 673 transitions. [2020-10-13 06:07:15,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:15,621 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 673 transitions. [2020-10-13 06:07:15,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-13 06:07:15,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:15,624 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:15,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:07:15,625 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:15,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1968250647, now seen corresponding path program 1 times [2020-10-13 06:07:15,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:15,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471480386] [2020-10-13 06:07:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:18,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 06:07:18,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:18,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2781 [2020-10-13 06:07:18,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:07:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:07:18,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:18,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:18,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:18,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:18,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:18,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:18,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:18,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:18,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:18,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:18,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:18,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:18,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:18,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:18,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:18,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:18,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:18,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:18,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:18,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:07:18,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:18,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:18,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:07:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:18,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:18,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:07:18,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:07:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,082 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:07:19,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471480386] [2020-10-13 06:07:19,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:19,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:19,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109612985] [2020-10-13 06:07:19,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:19,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:19,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:19,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:19,084 INFO L87 Difference]: Start difference. First operand 587 states and 673 transitions. Second operand 13 states. [2020-10-13 06:07:21,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:21,419 INFO L93 Difference]: Finished difference Result 1201 states and 1427 transitions. [2020-10-13 06:07:21,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:07:21,421 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 202 [2020-10-13 06:07:21,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:21,425 INFO L225 Difference]: With dead ends: 1201 [2020-10-13 06:07:21,425 INFO L226 Difference]: Without dead ends: 680 [2020-10-13 06:07:21,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:07:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-13 06:07:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 595. [2020-10-13 06:07:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-10-13 06:07:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 684 transitions. [2020-10-13 06:07:21,448 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 684 transitions. Word has length 202 [2020-10-13 06:07:21,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:21,449 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 684 transitions. [2020-10-13 06:07:21,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 684 transitions. [2020-10-13 06:07:21,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-13 06:07:21,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:21,451 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:21,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:07:21,452 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:21,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:21,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1507643055, now seen corresponding path program 1 times [2020-10-13 06:07:21,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:21,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196215806] [2020-10-13 06:07:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:21,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:21,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:21,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-13 06:07:25,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:25,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3795 [2020-10-13 06:07:25,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:07:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:25,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:25,699 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:07:25,903 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:07:26,144 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 49 [2020-10-13 06:07:26,363 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2020-10-13 06:07:26,569 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 42 [2020-10-13 06:07:26,765 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 39 [2020-10-13 06:07:26,936 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-10-13 06:07:26,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:26,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:26,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:26,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:26,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:26,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:26,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:26,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:26,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:26,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:26,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:27,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:27,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:27,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:07:27,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:07:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:07:27,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:27,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:27,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:07:27,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:07:27,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196215806] [2020-10-13 06:07:27,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:27,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:27,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13671076] [2020-10-13 06:07:27,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:27,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:27,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:27,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:27,228 INFO L87 Difference]: Start difference. First operand 595 states and 684 transitions. Second operand 13 states. [2020-10-13 06:07:27,540 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:07:27,708 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:07:28,223 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2020-10-13 06:07:28,626 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2020-10-13 06:07:28,936 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:07:29,417 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-10-13 06:07:29,800 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2020-10-13 06:07:30,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:30,059 INFO L93 Difference]: Finished difference Result 1187 states and 1410 transitions. [2020-10-13 06:07:30,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:07:30,062 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 214 [2020-10-13 06:07:30,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:30,066 INFO L225 Difference]: With dead ends: 1187 [2020-10-13 06:07:30,066 INFO L226 Difference]: Without dead ends: 641 [2020-10-13 06:07:30,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:30,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-10-13 06:07:30,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 595. [2020-10-13 06:07:30,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-10-13 06:07:30,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 683 transitions. [2020-10-13 06:07:30,088 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 683 transitions. Word has length 214 [2020-10-13 06:07:30,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:30,089 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 683 transitions. [2020-10-13 06:07:30,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 683 transitions. [2020-10-13 06:07:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-13 06:07:30,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:30,091 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:30,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:07:30,092 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:30,092 INFO L82 PathProgramCache]: Analyzing trace with hash -853887386, now seen corresponding path program 1 times [2020-10-13 06:07:30,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:30,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928366841] [2020-10-13 06:07:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:30,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:31,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:31,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-13 06:07:31,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:31,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1592 [2020-10-13 06:07:31,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:07:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:07:31,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,105 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:07:32,250 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:07:32,379 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 06:07:32,514 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-10-13 06:07:32,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:32,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:32,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:32,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:32,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:32,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:07:32,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:32,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:32,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:32,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 06:07:32,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:07:32,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:33,017 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:07:33,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928366841] [2020-10-13 06:07:33,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:33,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:33,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843934623] [2020-10-13 06:07:33,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:33,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:33,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:33,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:33,019 INFO L87 Difference]: Start difference. First operand 595 states and 683 transitions. Second operand 13 states. [2020-10-13 06:07:33,933 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:07:34,238 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:07:34,556 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:07:35,189 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:07:35,526 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:07:35,847 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:07:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:36,418 INFO L93 Difference]: Finished difference Result 1188 states and 1413 transitions. [2020-10-13 06:07:36,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:36,419 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2020-10-13 06:07:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:36,422 INFO L225 Difference]: With dead ends: 1188 [2020-10-13 06:07:36,423 INFO L226 Difference]: Without dead ends: 612 [2020-10-13 06:07:36,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:07:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-10-13 06:07:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 610. [2020-10-13 06:07:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-10-13 06:07:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 699 transitions. [2020-10-13 06:07:36,448 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 699 transitions. Word has length 226 [2020-10-13 06:07:36,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:36,449 INFO L479 AbstractCegarLoop]: Abstraction has 610 states and 699 transitions. [2020-10-13 06:07:36,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:36,449 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 699 transitions. [2020-10-13 06:07:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-13 06:07:36,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:36,452 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:36,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:07:36,452 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:36,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:36,453 INFO L82 PathProgramCache]: Analyzing trace with hash -2087028345, now seen corresponding path program 1 times [2020-10-13 06:07:36,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:36,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355023387] [2020-10-13 06:07:36,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:36,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-13 06:07:38,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1699 [2020-10-13 06:07:38,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:07:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:07:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:38,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:38,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:38,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:07:38,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:07:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:07:38,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:38,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:07:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:07:38,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 06:07:38,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:07:38,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:07:38,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355023387] [2020-10-13 06:07:38,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:38,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:38,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745152053] [2020-10-13 06:07:38,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:38,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:38,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:38,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:38,541 INFO L87 Difference]: Start difference. First operand 610 states and 699 transitions. Second operand 5 states. [2020-10-13 06:07:39,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:39,436 INFO L93 Difference]: Finished difference Result 1240 states and 1478 transitions. [2020-10-13 06:07:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:39,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 228 [2020-10-13 06:07:39,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:39,441 INFO L225 Difference]: With dead ends: 1240 [2020-10-13 06:07:39,441 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:07:39,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:39,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:07:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:07:39,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:07:39,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 301 transitions. [2020-10-13 06:07:39,452 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 301 transitions. Word has length 228 [2020-10-13 06:07:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:39,453 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 301 transitions. [2020-10-13 06:07:39,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:39,453 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 301 transitions. [2020-10-13 06:07:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-13 06:07:39,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:39,455 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:39,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:07:39,455 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:39,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:39,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1237459979, now seen corresponding path program 1 times [2020-10-13 06:07:39,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:39,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666075989] [2020-10-13 06:07:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:39,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:39,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:40,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:41,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:41,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:41,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-13 06:07:43,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:07:43,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3964 [2020-10-13 06:07:43,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:43,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:07:43,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:07:43,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:43,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:43,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:43,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:43,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:43,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:43,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:43,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:43,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:43,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:43,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:07:43,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:43,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:07:43,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:07:44,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666075989] [2020-10-13 06:07:44,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:44,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:44,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923064887] [2020-10-13 06:07:44,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:44,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:44,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:44,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:44,055 INFO L87 Difference]: Start difference. First operand 271 states and 301 transitions. Second operand 13 states. [2020-10-13 06:07:44,832 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:07:45,061 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:07:45,276 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:07:45,640 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:07:45,964 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:07:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:46,385 INFO L93 Difference]: Finished difference Result 551 states and 643 transitions. [2020-10-13 06:07:46,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:07:46,385 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 239 [2020-10-13 06:07:46,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:46,389 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:07:46,390 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:07:46,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:07:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:07:46,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:07:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:07:46,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 382 transitions. [2020-10-13 06:07:46,401 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 382 transitions. Word has length 239 [2020-10-13 06:07:46,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:46,402 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 382 transitions. [2020-10-13 06:07:46,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 382 transitions. [2020-10-13 06:07:46,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-13 06:07:46,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:46,404 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:46,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:07:46,404 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:46,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:46,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1748564258, now seen corresponding path program 1 times [2020-10-13 06:07:46,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:46,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613127883] [2020-10-13 06:07:46,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:46,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:46,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:47,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-13 06:07:47,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:47,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-13 06:07:47,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:07:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:07:47,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:47,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:47,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:47,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:47,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:47,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:47,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:47,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:47,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:47,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:47,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:47,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:07:47,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:47,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:47,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:47,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:47,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:47,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:47,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:47,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:47,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:47,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:07:47,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:47,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:47,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:47,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:47,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:47,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:47,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:47,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:47,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:47,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:47,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:47,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:47,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:47,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:47,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:47,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:47,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:07:47,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:47,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:07:47,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:07:47,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:07:47,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613127883] [2020-10-13 06:07:47,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:47,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:07:47,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888821810] [2020-10-13 06:07:47,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:07:47,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:47,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:07:47,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:47,648 INFO L87 Difference]: Start difference. First operand 346 states and 382 transitions. Second operand 6 states. [2020-10-13 06:07:48,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:48,503 INFO L93 Difference]: Finished difference Result 708 states and 814 transitions. [2020-10-13 06:07:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:48,504 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-10-13 06:07:48,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:48,506 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:07:48,506 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:07:48,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:48,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:07:48,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:07:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:07:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 380 transitions. [2020-10-13 06:07:48,517 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 380 transitions. Word has length 251 [2020-10-13 06:07:48,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:48,518 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 380 transitions. [2020-10-13 06:07:48,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:07:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 380 transitions. [2020-10-13 06:07:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-13 06:07:48,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:48,520 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:48,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:07:48,521 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:48,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:48,521 INFO L82 PathProgramCache]: Analyzing trace with hash 634657666, now seen corresponding path program 1 times [2020-10-13 06:07:48,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:48,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124148636] [2020-10-13 06:07:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:48,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:48,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:49,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:49,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-13 06:07:49,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1384 [2020-10-13 06:07:49,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:07:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:07:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,536 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2020-10-13 06:07:50,690 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 41 [2020-10-13 06:07:50,837 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:07:50,996 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 37 [2020-10-13 06:07:51,137 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2020-10-13 06:07:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:51,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:51,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:51,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:51,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:51,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:51,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:51,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:51,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:51,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:51,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:51,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:51,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:51,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:51,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:51,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:51,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:51,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:51,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:51,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:51,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:51,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:51,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:51,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:51,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:51,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:51,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:51,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:51,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:51,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:51,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:51,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:51,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:51,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:51,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:51,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:51,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:51,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:51,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:51,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:51,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:51,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:51,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:51,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:51,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:07:51,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:07:51,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124148636] [2020-10-13 06:07:51,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:51,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:51,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028917282] [2020-10-13 06:07:51,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:51,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:51,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:51,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:51,464 INFO L87 Difference]: Start difference. First operand 346 states and 380 transitions. Second operand 13 states. [2020-10-13 06:07:52,049 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:07:52,374 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-10-13 06:07:52,678 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2020-10-13 06:07:53,017 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-10-13 06:07:53,312 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:07:53,726 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:07:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:54,019 INFO L93 Difference]: Finished difference Result 698 states and 799 transitions. [2020-10-13 06:07:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:54,020 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 254 [2020-10-13 06:07:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:54,024 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:07:54,025 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:07:54,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:07:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:07:54,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:07:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 459 transitions. [2020-10-13 06:07:54,039 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 459 transitions. Word has length 254 [2020-10-13 06:07:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:54,039 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 459 transitions. [2020-10-13 06:07:54,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 459 transitions. [2020-10-13 06:07:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-13 06:07:54,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:54,042 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:54,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:07:54,042 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:54,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:54,042 INFO L82 PathProgramCache]: Analyzing trace with hash -2123973506, now seen corresponding path program 1 times [2020-10-13 06:07:54,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:54,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748473761] [2020-10-13 06:07:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-13 06:07:54,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-13 06:07:54,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:07:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:07:54,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:54,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:54,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:54,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:54,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:54,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:54,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:54,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:54,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:54,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:54,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:54,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:54,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:54,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:54,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:54,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:54,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:54,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:54,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:54,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:54,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:07:54,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:54,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:54,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:54,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:54,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:54,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:07:54,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:07:54,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748473761] [2020-10-13 06:07:54,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:54,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:54,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124935785] [2020-10-13 06:07:54,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:54,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:54,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:54,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:54,753 INFO L87 Difference]: Start difference. First operand 418 states and 459 transitions. Second operand 5 states. [2020-10-13 06:07:55,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:55,616 INFO L93 Difference]: Finished difference Result 851 states and 967 transitions. [2020-10-13 06:07:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:55,617 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2020-10-13 06:07:55,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:55,619 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:07:55,619 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:07:55,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:55,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:07:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:07:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:07:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 457 transitions. [2020-10-13 06:07:55,632 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 457 transitions. Word has length 256 [2020-10-13 06:07:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:55,633 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 457 transitions. [2020-10-13 06:07:55,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:55,633 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 457 transitions. [2020-10-13 06:07:55,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-13 06:07:55,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:55,635 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:55,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:07:55,636 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:55,636 INFO L82 PathProgramCache]: Analyzing trace with hash 479783621, now seen corresponding path program 1 times [2020-10-13 06:07:55,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:55,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402065822] [2020-10-13 06:07:55,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:55,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-13 06:07:56,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:56,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1234 [2020-10-13 06:07:56,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:56,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:07:56,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:07:56,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:57,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:57,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:57,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:07:57,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:57,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:57,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:57,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:57,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:57,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:57,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:57,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:07:57,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:07:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:07:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:07:57,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402065822] [2020-10-13 06:07:57,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:57,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:57,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091238620] [2020-10-13 06:07:57,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:57,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:57,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:57,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:57,493 INFO L87 Difference]: Start difference. First operand 418 states and 457 transitions. Second operand 5 states. [2020-10-13 06:07:58,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:58,321 INFO L93 Difference]: Finished difference Result 849 states and 960 transitions. [2020-10-13 06:07:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:58,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-10-13 06:07:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:58,324 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:07:58,324 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:07:58,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:58,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:07:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:07:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:07:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 455 transitions. [2020-10-13 06:07:58,336 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 455 transitions. Word has length 274 [2020-10-13 06:07:58,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:58,336 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 455 transitions. [2020-10-13 06:07:58,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:58,336 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 455 transitions. [2020-10-13 06:07:58,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-13 06:07:58,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:58,338 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:58,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:07:58,339 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:58,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:58,339 INFO L82 PathProgramCache]: Analyzing trace with hash 110466354, now seen corresponding path program 1 times [2020-10-13 06:07:58,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:58,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869430993] [2020-10-13 06:07:58,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-13 06:07:58,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:58,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-13 06:07:58,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:07:58,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:07:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:58,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:07:58,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:58,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:58,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:58,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:58,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:58,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:58,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:58,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:58,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:58,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:58,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:58,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:07:58,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:07:58,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:07:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:59,012 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:07:59,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869430993] [2020-10-13 06:07:59,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:59,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:59,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187311667] [2020-10-13 06:07:59,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:59,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:59,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:59,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:59,014 INFO L87 Difference]: Start difference. First operand 418 states and 455 transitions. Second operand 5 states. [2020-10-13 06:07:59,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:59,795 INFO L93 Difference]: Finished difference Result 853 states and 959 transitions. [2020-10-13 06:07:59,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:59,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-10-13 06:07:59,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:59,800 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:07:59,800 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:07:59,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:59,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:07:59,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:07:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:07:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 453 transitions. [2020-10-13 06:07:59,814 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 453 transitions. Word has length 273 [2020-10-13 06:07:59,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:59,814 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 453 transitions. [2020-10-13 06:07:59,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:59,815 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 453 transitions. [2020-10-13 06:07:59,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-13 06:07:59,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:59,818 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:59,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:07:59,818 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:59,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:59,818 INFO L82 PathProgramCache]: Analyzing trace with hash -2058403249, now seen corresponding path program 1 times [2020-10-13 06:07:59,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:59,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80900513] [2020-10-13 06:07:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:59,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:01,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:01,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-13 06:08:01,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:01,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1560 [2020-10-13 06:08:01,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:08:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:08:01,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:01,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:01,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:01,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:01,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:01,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:01,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:01,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:01,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:01,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:08:01,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:01,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:01,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:01,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:01,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:01,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:01,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:01,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:01,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:01,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:01,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:01,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:01,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:01,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:01,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:01,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:01,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:01,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:01,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:01,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:01,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:01,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:01,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:01,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:02,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:02,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:08:02,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:02,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:08:02,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:02,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:02,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:02,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:08:02,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:08:02,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80900513] [2020-10-13 06:08:02,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:02,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:08:02,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642750992] [2020-10-13 06:08:02,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:08:02,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:02,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:08:02,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:08:02,215 INFO L87 Difference]: Start difference. First operand 418 states and 453 transitions. Second operand 14 states. [2020-10-13 06:08:02,808 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-10-13 06:08:03,029 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-13 06:08:03,258 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-13 06:08:03,609 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-13 06:08:03,879 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-13 06:08:04,183 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 06:08:04,482 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-13 06:08:04,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:04,723 INFO L93 Difference]: Finished difference Result 835 states and 935 transitions. [2020-10-13 06:08:04,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:04,724 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 283 [2020-10-13 06:08:04,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:04,727 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:08:04,727 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:04,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:08:04,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:04,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:04,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 528 transitions. [2020-10-13 06:08:04,740 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 528 transitions. Word has length 283 [2020-10-13 06:08:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:04,741 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 528 transitions. [2020-10-13 06:08:04,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:08:04,741 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 528 transitions. [2020-10-13 06:08:04,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-13 06:08:04,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:04,744 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:04,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:08:04,745 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:04,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:04,745 INFO L82 PathProgramCache]: Analyzing trace with hash -332235210, now seen corresponding path program 1 times [2020-10-13 06:08:04,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:04,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20902832] [2020-10-13 06:08:04,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:04,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:05,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-13 06:08:05,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:05,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-13 06:08:05,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:05,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:05,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:08:05,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:08:05,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:05,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:05,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:05,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:05,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:05,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:05,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:05,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:05,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:05,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:05,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:05,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:05,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:05,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:05,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:05,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:05,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:05,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:05,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:05,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:05,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:05,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:05,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:05,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:05,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:05,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:05,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:05,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:05,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:05,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:05,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:05,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:05,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:05,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:05,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:05,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:08:05,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:08:05,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:08:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:08:05,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20902832] [2020-10-13 06:08:05,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:05,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:05,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256466386] [2020-10-13 06:08:05,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:05,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:05,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:05,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:05,558 INFO L87 Difference]: Start difference. First operand 483 states and 528 transitions. Second operand 5 states. [2020-10-13 06:08:06,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:06,402 INFO L93 Difference]: Finished difference Result 984 states and 1106 transitions. [2020-10-13 06:08:06,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:06,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2020-10-13 06:08:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:06,412 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:08:06,412 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:06,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:06,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:06,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:06,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:06,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 526 transitions. [2020-10-13 06:08:06,426 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 526 transitions. Word has length 292 [2020-10-13 06:08:06,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:06,426 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 526 transitions. [2020-10-13 06:08:06,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:06,427 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 526 transitions. [2020-10-13 06:08:06,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-13 06:08:06,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:06,429 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:06,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:08:06,430 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:06,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:06,430 INFO L82 PathProgramCache]: Analyzing trace with hash 588184947, now seen corresponding path program 1 times [2020-10-13 06:08:06,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:06,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008713607] [2020-10-13 06:08:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:06,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-13 06:08:07,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:07,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-13 06:08:07,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:08:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:08:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:07,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:07,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:07,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:07,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:07,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:07,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:07,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:07,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:07,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:07,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:08:07,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:08:07,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:07,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:08:07,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:08:07,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008713607] [2020-10-13 06:08:07,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:07,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:07,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764754133] [2020-10-13 06:08:07,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:07,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:07,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:07,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:07,433 INFO L87 Difference]: Start difference. First operand 483 states and 526 transitions. Second operand 5 states. [2020-10-13 06:08:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:08,266 INFO L93 Difference]: Finished difference Result 978 states and 1095 transitions. [2020-10-13 06:08:08,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:08,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-10-13 06:08:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:08,269 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:08:08,269 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:08,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:08,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:08,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:08,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 524 transitions. [2020-10-13 06:08:08,280 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 524 transitions. Word has length 297 [2020-10-13 06:08:08,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:08,281 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 524 transitions. [2020-10-13 06:08:08,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:08,281 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 524 transitions. [2020-10-13 06:08:08,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-13 06:08:08,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:08,283 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:08,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:08:08,284 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:08,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:08,284 INFO L82 PathProgramCache]: Analyzing trace with hash -623481433, now seen corresponding path program 1 times [2020-10-13 06:08:08,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:08,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933647455] [2020-10-13 06:08:08,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:08,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:08,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:10,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:10,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-13 06:08:10,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:10,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1748 [2020-10-13 06:08:10,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:10,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:10,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:08:10,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:08:10,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:10,573 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:08:10,725 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-13 06:08:10,857 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2020-10-13 06:08:11,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:11,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:11,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:11,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:11,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:11,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:11,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:11,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:11,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:11,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:11,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:08:11,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:08:11,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,531 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:08:11,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933647455] [2020-10-13 06:08:11,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:11,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:11,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197050217] [2020-10-13 06:08:11,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:11,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:11,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:11,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:11,533 INFO L87 Difference]: Start difference. First operand 483 states and 524 transitions. Second operand 13 states. [2020-10-13 06:08:12,412 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2020-10-13 06:08:12,796 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 112 [2020-10-13 06:08:13,114 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2020-10-13 06:08:13,474 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 106 [2020-10-13 06:08:13,767 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 103 [2020-10-13 06:08:14,232 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2020-10-13 06:08:14,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:14,671 INFO L93 Difference]: Finished difference Result 962 states and 1070 transitions. [2020-10-13 06:08:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:08:14,672 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 303 [2020-10-13 06:08:14,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:14,674 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:08:14,674 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:08:14,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:08:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:08:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:08:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:08:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 588 transitions. [2020-10-13 06:08:14,688 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 588 transitions. Word has length 303 [2020-10-13 06:08:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:14,688 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 588 transitions. [2020-10-13 06:08:14,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 588 transitions. [2020-10-13 06:08:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-13 06:08:14,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:14,691 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:14,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:08:14,692 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:14,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:14,692 INFO L82 PathProgramCache]: Analyzing trace with hash -35580246, now seen corresponding path program 1 times [2020-10-13 06:08:14,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:14,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211223146] [2020-10-13 06:08:14,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-13 06:08:16,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:16,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1811 [2020-10-13 06:08:16,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:16,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:08:16,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:08:16,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:16,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:16,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:16,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:16,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:16,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:16,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:16,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:16,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:16,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:16,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:08:16,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:16,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:08:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:08:16,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:16,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:16,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:08:16,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:08:17,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211223146] [2020-10-13 06:08:17,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:17,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:17,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872705209] [2020-10-13 06:08:17,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:17,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:17,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:17,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:17,203 INFO L87 Difference]: Start difference. First operand 539 states and 588 transitions. Second operand 5 states. [2020-10-13 06:08:18,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:18,052 INFO L93 Difference]: Finished difference Result 1088 states and 1218 transitions. [2020-10-13 06:08:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:18,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-10-13 06:08:18,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:18,063 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:08:18,063 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:08:18,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:18,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:08:18,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:08:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:08:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 586 transitions. [2020-10-13 06:08:18,077 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 586 transitions. Word has length 308 [2020-10-13 06:08:18,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:18,077 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 586 transitions. [2020-10-13 06:08:18,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:18,077 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 586 transitions. [2020-10-13 06:08:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-13 06:08:18,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:18,080 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:18,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:08:18,080 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:18,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:18,081 INFO L82 PathProgramCache]: Analyzing trace with hash -810731506, now seen corresponding path program 1 times [2020-10-13 06:08:18,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:18,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449938244] [2020-10-13 06:08:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-13 06:08:18,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:18,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-13 06:08:18,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:08:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:08:18,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:18,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:18,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:18,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:18,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:08:18,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:18,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:18,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:18,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:18,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:18,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:18,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:18,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:08:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:19,160 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:08:19,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449938244] [2020-10-13 06:08:19,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:19,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:19,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390436374] [2020-10-13 06:08:19,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:19,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:19,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:19,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:19,162 INFO L87 Difference]: Start difference. First operand 539 states and 586 transitions. Second operand 5 states. [2020-10-13 06:08:19,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:19,949 INFO L93 Difference]: Finished difference Result 1097 states and 1221 transitions. [2020-10-13 06:08:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:19,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-10-13 06:08:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:19,953 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:08:19,953 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:08:19,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:08:19,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:08:19,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:08:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 525 transitions. [2020-10-13 06:08:19,964 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 525 transitions. Word has length 312 [2020-10-13 06:08:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:19,964 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 525 transitions. [2020-10-13 06:08:19,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 525 transitions. [2020-10-13 06:08:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-13 06:08:19,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:19,967 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:19,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:08:19,967 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:19,968 INFO L82 PathProgramCache]: Analyzing trace with hash 151196654, now seen corresponding path program 1 times [2020-10-13 06:08:19,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:19,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730245324] [2020-10-13 06:08:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:20,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-13 06:08:23,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3020 [2020-10-13 06:08:23,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:08:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:08:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:23,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:23,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:23,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:23,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:23,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:23,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:23,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:23,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:23,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:23,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:23,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:23,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:08:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:08:23,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:23,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:23,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:23,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:08:23,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:08:23,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730245324] [2020-10-13 06:08:23,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:23,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:23,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529384851] [2020-10-13 06:08:23,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:23,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:23,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:23,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:23,795 INFO L87 Difference]: Start difference. First operand 481 states and 525 transitions. Second operand 13 states. [2020-10-13 06:08:25,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:25,366 INFO L93 Difference]: Finished difference Result 969 states and 1087 transitions. [2020-10-13 06:08:25,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:25,367 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 321 [2020-10-13 06:08:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:25,370 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:08:25,371 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:08:25,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:08:25,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:08:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:08:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 528 transitions. [2020-10-13 06:08:25,384 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 528 transitions. Word has length 321 [2020-10-13 06:08:25,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:25,384 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 528 transitions. [2020-10-13 06:08:25,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 528 transitions. [2020-10-13 06:08:25,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-13 06:08:25,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:25,387 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:25,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:08:25,388 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:25,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:25,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1328954913, now seen corresponding path program 1 times [2020-10-13 06:08:25,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:25,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573263064] [2020-10-13 06:08:25,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:25,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:25,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:25,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:25,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-13 06:08:25,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:25,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-13 06:08:25,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:08:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:08:25,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:26,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:26,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:26,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:26,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:26,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:26,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:26,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:26,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:26,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:26,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:26,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:26,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:26,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:26,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:26,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:26,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:26,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:26,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:26,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:26,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:26,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:26,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:26,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:26,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:26,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:26,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:26,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:26,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:26,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:26,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:26,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:26,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:26,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:26,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:26,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:26,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:26,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:26,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:26,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:26,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:26,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:26,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:26,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:08:26,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:26,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:08:26,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:08:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:08:26,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573263064] [2020-10-13 06:08:26,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:26,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:26,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892373334] [2020-10-13 06:08:26,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:26,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:26,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:26,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:26,330 INFO L87 Difference]: Start difference. First operand 483 states and 528 transitions. Second operand 5 states. [2020-10-13 06:08:27,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:27,156 INFO L93 Difference]: Finished difference Result 980 states and 1101 transitions. [2020-10-13 06:08:27,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:27,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-10-13 06:08:27,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:27,160 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:08:27,160 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:27,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 526 transitions. [2020-10-13 06:08:27,170 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 526 transitions. Word has length 324 [2020-10-13 06:08:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:27,170 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 526 transitions. [2020-10-13 06:08:27,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 526 transitions. [2020-10-13 06:08:27,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 06:08:27,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:27,173 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:27,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:08:27,174 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:27,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:27,174 INFO L82 PathProgramCache]: Analyzing trace with hash -309123498, now seen corresponding path program 1 times [2020-10-13 06:08:27,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:27,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474009439] [2020-10-13 06:08:27,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:28,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:29,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-13 06:08:29,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:29,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2596 [2020-10-13 06:08:29,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:08:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:08:29,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:30,183 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-13 06:08:30,385 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-13 06:08:30,639 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-13 06:08:30,875 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-13 06:08:31,091 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-13 06:08:31,303 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-13 06:08:31,486 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 37 [2020-10-13 06:08:31,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:31,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:31,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:31,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:08:31,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:31,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:31,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:31,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:31,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:31,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:31,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:31,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:31,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:08:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:08:31,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:08:31,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:08:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:08:31,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474009439] [2020-10-13 06:08:31,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:31,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:31,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871566653] [2020-10-13 06:08:31,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:31,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:31,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:31,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:31,939 INFO L87 Difference]: Start difference. First operand 483 states and 526 transitions. Second operand 13 states. [2020-10-13 06:08:32,669 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-13 06:08:32,840 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:08:33,013 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:08:33,423 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-10-13 06:08:33,686 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-13 06:08:34,014 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-13 06:08:34,431 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-10-13 06:08:34,752 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-13 06:08:35,121 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2020-10-13 06:08:35,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:35,656 INFO L93 Difference]: Finished difference Result 956 states and 1070 transitions. [2020-10-13 06:08:35,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:08:35,657 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 326 [2020-10-13 06:08:35,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:35,660 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:08:35,660 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:08:35,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:08:35,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:08:35,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:08:35,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:08:35,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 590 transitions. [2020-10-13 06:08:35,675 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 590 transitions. Word has length 326 [2020-10-13 06:08:35,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:35,675 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 590 transitions. [2020-10-13 06:08:35,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:35,676 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 590 transitions. [2020-10-13 06:08:35,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-13 06:08:35,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:35,679 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:35,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:08:35,679 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:35,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:35,679 INFO L82 PathProgramCache]: Analyzing trace with hash -214825246, now seen corresponding path program 1 times [2020-10-13 06:08:35,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:35,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021570331] [2020-10-13 06:08:35,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:35,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-13 06:08:36,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:36,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-13 06:08:36,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:36,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:08:36,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:08:36,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:36,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:36,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:36,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:36,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:36,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:36,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:36,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:36,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:36,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:36,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:36,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:36,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:36,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:36,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:36,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:36,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:36,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:36,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:36,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:36,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:36,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:36,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:36,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:36,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:36,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:36,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:36,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:36,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:08:36,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:36,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:36,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:36,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:36,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:36,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:08:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:36,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:08:36,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:36,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:08:36,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:36,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:36,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:08:36,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:08:36,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021570331] [2020-10-13 06:08:36,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:36,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:36,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672667754] [2020-10-13 06:08:36,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:36,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:36,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:36,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:36,656 INFO L87 Difference]: Start difference. First operand 537 states and 590 transitions. Second operand 5 states. [2020-10-13 06:08:37,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:37,506 INFO L93 Difference]: Finished difference Result 1083 states and 1219 transitions. [2020-10-13 06:08:37,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:37,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-10-13 06:08:37,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:37,510 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:08:37,510 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:08:37,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:08:37,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:08:37,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:08:37,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 587 transitions. [2020-10-13 06:08:37,520 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 587 transitions. Word has length 327 [2020-10-13 06:08:37,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:37,521 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 587 transitions. [2020-10-13 06:08:37,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:37,521 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 587 transitions. [2020-10-13 06:08:37,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 06:08:37,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:37,523 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:37,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:08:37,523 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:37,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:37,523 INFO L82 PathProgramCache]: Analyzing trace with hash 329074653, now seen corresponding path program 1 times [2020-10-13 06:08:37,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:37,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406864162] [2020-10-13 06:08:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-10-13 06:08:38,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:38,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 952 [2020-10-13 06:08:38,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:38,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:08:38,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:08:38,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:38,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:38,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:38,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:38,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:38,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:38,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:38,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:38,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:38,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:38,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:38,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:38,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:38,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:38,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:38,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:38,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:38,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:38,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:38,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:38,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:38,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:08:38,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:38,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:08:38,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:38,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:38,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:08:38,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:08:38,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406864162] [2020-10-13 06:08:38,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:38,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:08:38,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358449689] [2020-10-13 06:08:38,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:08:38,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:38,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:08:38,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:38,931 INFO L87 Difference]: Start difference. First operand 537 states and 587 transitions. Second operand 6 states. [2020-10-13 06:08:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:39,708 INFO L93 Difference]: Finished difference Result 1085 states and 1214 transitions. [2020-10-13 06:08:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:39,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 326 [2020-10-13 06:08:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:39,714 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:08:39,714 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:08:39,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:39,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:08:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:08:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:08:39,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 561 transitions. [2020-10-13 06:08:39,727 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 561 transitions. Word has length 326 [2020-10-13 06:08:39,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:39,730 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 561 transitions. [2020-10-13 06:08:39,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:08:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 561 transitions. [2020-10-13 06:08:39,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-13 06:08:39,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:39,734 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:39,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:08:39,735 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:39,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:39,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1988230698, now seen corresponding path program 1 times [2020-10-13 06:08:39,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:39,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661795482] [2020-10-13 06:08:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:39,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:39,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:41,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 368 [2020-10-13 06:08:41,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:41,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1827 [2020-10-13 06:08:41,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:41,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:41,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:08:41,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:08:41,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:41,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:41,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:41,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:41,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:41,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:41,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:41,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:41,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:41,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:41,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:41,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:41,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:41,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:41,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:41,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:41,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:41,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:41,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:41,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:41,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:41,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:41,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:41,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:41,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:41,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:41,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:41,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:41,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:41,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:41,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:41,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:41,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:41,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:41,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:41,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:41,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:41,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:41,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:41,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:41,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:08:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:41,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:08:41,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:41,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:08:41,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:41,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:41,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:41,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:08:41,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,142 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:08:42,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661795482] [2020-10-13 06:08:42,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:42,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:42,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413952209] [2020-10-13 06:08:42,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:42,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:42,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:42,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:42,144 INFO L87 Difference]: Start difference. First operand 514 states and 561 transitions. Second operand 5 states. [2020-10-13 06:08:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:42,706 INFO L93 Difference]: Finished difference Result 897 states and 991 transitions. [2020-10-13 06:08:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:42,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 348 [2020-10-13 06:08:42,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:42,707 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:08:42,707 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:08:42,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:08:42,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:08:42,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:08:42,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:08:42,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 348 [2020-10-13 06:08:42,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:42,710 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:08:42,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:42,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:08:42,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:08:42,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 06:08:42,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:08:43,429 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 176 [2020-10-13 06:08:43,579 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 149 [2020-10-13 06:08:43,730 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-10-13 06:08:49,808 WARN L193 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 345 DAG size of output: 255 [2020-10-13 06:08:51,662 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 186 DAG size of output: 155 [2020-10-13 06:08:53,029 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 157 DAG size of output: 126 [2020-10-13 06:08:53,034 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:08:53,034 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:08:53,034 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:08:53,035 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:08:53,035 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:08:53,035 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,036 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,036 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,036 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,036 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,036 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,037 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:08:53,037 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:08:53,037 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:08:53,037 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:08:53,037 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:08:53,037 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:08:53,037 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:08:53,037 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:08:53,038 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:08:53,038 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:08:53,038 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,038 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,038 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,038 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,038 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,038 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:08:53,039 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 494) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,040 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,041 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,041 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,041 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,041 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:08:53,041 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:08:53,041 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:08:53,041 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:08:53,041 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,042 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,043 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:08:53,043 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:08:53,043 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:08:53,043 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:08:53,043 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:08:53,043 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:08:53,043 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:08:53,043 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,044 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:08:53,045 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:08:53,046 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:08:53,047 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:08:53,048 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:08:53,048 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:08:53,048 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,048 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,048 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,048 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,048 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,049 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:08:53,049 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:08:53,049 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:08:53,049 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:08:53,049 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:08:53,049 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:08:53,049 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:08:53,049 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:08:53,050 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:08:53,051 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:08:53,051 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:08:53,051 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:08:53,051 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:08:53,051 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:08:53,051 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:08:53,052 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse50 (= |old(~a21~0)| 1)) (.cse43 (= |old(~a7~0)| 1)) (.cse3 (= 14 ~a8~0)) (.cse42 (= |old(~a20~0)| 1)) (.cse45 (= ~a8~0 15)) (.cse32 (= 5 ~a16~0)) (.cse46 (= |old(~a17~0)| 1)) (.cse44 (= ~a21~0 |old(~a21~0)|)) (.cse39 (= ~a16~0 |old(~a16~0)|)) (.cse38 (= ~a7~0 |old(~a7~0)|)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse40 (= ~a8~0 13)) (.cse4 (= ~a16~0 4))) (let ((.cse31 (not (= |old(~a7~0)| |old(~a20~0)|))) (.cse29 (= ~a20~0 ~a7~0)) (.cse13 (not (<= 5 |old(~a16~0)|))) (.cse19 (not (<= |old(~a16~0)| 5))) (.cse60 (not (<= 1 |old(~a7~0)|))) (.cse54 (<= 1 ~a7~0)) (.cse48 (<= ~a7~0 1)) (.cse62 (not (<= |old(~a20~0)| 0))) (.cse47 (and .cse38 .cse0 .cse1 .cse2 .cse40 .cse4)) (.cse18 (not (<= |old(~a21~0)| 0))) (.cse14 (not (<= |old(~a7~0)| 1))) (.cse17 (not (< 0 |old(~a7~0)|))) (.cse20 (and .cse38 .cse0 (< 12 ~a8~0) .cse44 .cse2 .cse39 (<= ~a8~0 13))) (.cse21 (not (<= |old(~a8~0)| 13))) (.cse22 (not (< 12 |old(~a8~0)|))) (.cse37 (not (= 6 |old(~a16~0)|))) (.cse26 (not (= 0 |old(~a20~0)|))) (.cse66 (<= ~a16~0 4)) (.cse67 (= ~a8~0 |old(~a8~0)|)) (.cse68 (<= 4 ~a16~0)) (.cse69 (not (<= |old(~a16~0)| 4))) (.cse15 (not (<= |old(~a17~0)| 1))) (.cse63 (not (<= 1 |old(~a20~0)|))) (.cse64 (not (<= 4 |old(~a16~0)|))) (.cse65 (not (<= 14 |old(~a8~0)|))) (.cse70 (not (<= |old(~a8~0)| 14))) (.cse35 (not .cse46)) (.cse51 (and .cse38 .cse0 .cse1 .cse2 .cse45 .cse32)) (.cse8 (not .cse42)) (.cse23 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse6 (not (= 14 |old(~a8~0)|))) (.cse71 (and .cse38 .cse0 .cse1 .cse2 .cse3 .cse32)) (.cse33 (not (= 5 |old(~a16~0)|))) (.cse36 (not (<= |old(~a7~0)| 0))) (.cse49 (not (<= |old(~a17~0)| 0))) (.cse52 (not (<= |old(~a8~0)| 15))) (.cse53 (not (<= |old(~a21~0)| 1))) (.cse16 (not (<= |old(~a20~0)| 1))) (.cse72 (not (<= |old(~a16~0)| 6))) (.cse73 (not (< 5 |old(~a16~0)|))) (.cse25 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse55 (<= ~a21~0 1)) (.cse56 (<= 1 ~a21~0)) (.cse57 (<= ~a8~0 15)) (.cse58 (<= 15 ~a8~0)) (.cse59 (not (<= 15 |old(~a8~0)|))) (.cse61 (not (<= 1 |old(~a21~0)|))) (.cse24 (not (< 0 |old(~a20~0)|))) (.cse34 (not (= |old(~a8~0)| 13))) (.cse5 (= ~a17~0 ~a7~0)) (.cse7 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse30 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse41 (not .cse43)) (.cse27 (and .cse38 .cse0 .cse1 .cse2 .cse45 .cse4)) (.cse28 (not (= 15 |old(~a8~0)|))) (.cse9 (not .cse50)) (.cse10 (not (= ~a12~0 8))) (.cse11 (not (= 4 |old(~a16~0)|))) (.cse12 (not (= 0 |old(~a17~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (or .cse13 .cse14 .cse15 .cse16 .cse17 (not (< 0 |old(~a17~0)|)) .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse10 .cse24) (or .cse25 .cse26 .cse27 .cse28 .cse9 .cse10 .cse11 .cse12) (or .cse6 (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse29) .cse30 .cse26 .cse31 .cse9 .cse10 .cse11) (or .cse6 .cse30 .cse26 .cse31 (and .cse0 .cse1 .cse2 .cse3 .cse32 .cse29) .cse33 .cse9 .cse10) (or .cse34 .cse35 .cse36 .cse37 (and .cse38 .cse0 .cse1 .cse2 .cse39 .cse40) .cse8 .cse9 .cse10) (or (and (or .cse34 .cse35 .cse41 .cse8 .cse23 .cse10 .cse11) (or .cse42 .cse37 .cse23 .cse28 .cse9 .cse10 .cse43 .cse12)) (and .cse2 .cse39 (or (and .cse38 .cse44 .cse40 .cse4 (= ~a17~0 1)) (and .cse38 .cse1 .cse45 (not (= ~a20~0 1)) (= ~a17~0 0))))) (or .cse34 .cse42 .cse46 .cse9 .cse47 .cse10 .cse11 .cse43) (or .cse34 (and .cse0 .cse44 .cse2 (<= ~a20~0 ~a7~0) .cse40 .cse4 .cse48) .cse8 .cse14 (not (<= |old(~a20~0)| |old(~a7~0)|)) .cse49 .cse50 .cse23 .cse10 .cse11) (or .cse35 .cse42 .cse27 .cse23 .cse28 .cse9 .cse10 .cse11 .cse43) (or .cse34 .cse35 .cse25 .cse7 (and .cse0 .cse44 .cse2 .cse40 .cse4 .cse5) .cse26 .cse50 .cse10 .cse11) (or .cse42 .cse51 .cse33 .cse23 .cse28 .cse9 .cse10 .cse43) (or .cse51 .cse33 .cse23 .cse28 .cse9 .cse10 .cse43 .cse12) (or .cse13 .cse52 .cse53 .cse19 (and .cse54 .cse0 .cse2 .cse39 .cse55 .cse56 .cse57 .cse58 .cse48) .cse59 .cse60 .cse61 .cse14 .cse49 .cse10 .cse62) (or .cse34 .cse35 .cse36 .cse53 (and .cse38 .cse0 .cse2 .cse40 .cse55 .cse4 .cse56) .cse61 .cse63 .cse10 .cse11 .cse16) (or .cse64 .cse65 .cse53 .cse60 .cse61 (and .cse54 .cse0 .cse2 .cse66 .cse67 .cse68 .cse55 .cse56 .cse48) .cse69 .cse14 .cse70 .cse49 .cse10 .cse62) (or .cse34 .cse35 .cse41 .cse8 .cse9 .cse47 .cse10 .cse11) (or .cse6 .cse41 .cse8 .cse71 .cse33 .cse9 .cse10 .cse12) (or (and .cse18 (not (<= 2 |old(~a21~0)|))) .cse14 .cse49 .cse16 .cse17 .cse72 .cse73 .cse25 .cse20 .cse21 .cse22 .cse10 .cse24) (or .cse35 .cse25 .cse37 (and .cse38 .cse0 .cse1 .cse2 .cse39 .cse45) .cse26 .cse28 .cse9 .cse10 .cse43) (or (and .cse38 .cse0 .cse2 .cse66 .cse67 .cse68 .cse55 .cse56) .cse36 .cse53 (not (<= 1 |old(~a17~0)|)) .cse69 .cse15 .cse63 .cse16 .cse64 .cse65 .cse61 .cse70 .cse10) (or .cse35 .cse51 .cse36 .cse25 .cse33 .cse28 .cse9 .cse10) (or .cse8 .cse27 .cse23 .cse28 .cse9 .cse10 .cse11 .cse43 .cse12) (or .cse6 .cse30 .cse41 .cse71 .cse33 .cse9 .cse10 .cse12) (or (and .cse36 (not (<= 2 |old(~a7~0)|))) (and (not (<= 2 |old(~a17~0)|)) .cse49) .cse52 .cse53 .cse16 .cse72 .cse73 .cse25 (and .cse0 .cse38 (<= ~a16~0 6) .cse2 (< 5 ~a16~0) .cse55 .cse56 .cse57 .cse58) .cse59 .cse61 .cse10 .cse24) (or .cse34 (and .cse0 .cse1 .cse2 .cse40 .cse4 .cse5) .cse7 .cse9 .cse10 .cse11 .cse12) (or .cse30 .cse41 .cse27 .cse28 .cse9 .cse10 .cse11 .cse12)))) [2020-10-13 06:08:53,052 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:08:53,053 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,053 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,053 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,053 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,053 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:08:53,053 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,053 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,053 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:08:53,054 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:08:53,055 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:08:53,055 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:08:53,055 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,055 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:08:53,057 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:08:53,058 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:08:53,059 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:08:53,060 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:08:53,060 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:08:53,060 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:08:53,060 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:08:53,060 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:08:53,060 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:08:53,060 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:08:53,060 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= 1 ~a17~0) (<= ~a16~0 5) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= ~a20~0 1) (<= ~a17~0 1) (<= 1 ~a21~0) (<= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0)) [2020-10-13 06:08:53,061 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:08:53,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:08:53,061 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= ~a12~0 8))) [2020-10-13 06:08:53,061 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:08:53,061 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse26 (= ~a7~0 1)) (.cse30 (= ~a20~0 1)) (.cse12 (<= ~a7~0 0)) (.cse2 (= ~a21~0 1))) (let ((.cse8 (<= 14 ~a8~0)) (.cse9 (<= ~a8~0 14)) (.cse10 (<= ~a16~0 4)) (.cse11 (<= 4 ~a16~0)) (.cse7 (<= 1 ~a17~0)) (.cse15 (<= ~a17~0 1)) (.cse31 (<= 13 ~a8~0)) (.cse34 (<= ~a21~0 0)) (.cse36 (<= ~a8~0 13)) (.cse37 (= ~a17~0 ~a7~0)) (.cse44 (not .cse2)) (.cse5 (= ~a20~0 ~a7~0)) (.cse38 (<= ~a16~0 6)) (.cse6 (<= 1 ~a20~0)) (.cse39 (<= 6 ~a16~0)) (.cse41 (or (< 1 ~a7~0) .cse12)) (.cse14 (<= ~a20~0 1)) (.cse25 (not .cse30)) (.cse1 (= ~a20~0 ~a17~0)) (.cse3 (= 14 ~a8~0)) (.cse17 (<= 1 ~a7~0)) (.cse32 (<= ~a16~0 5)) (.cse18 (<= ~a17~0 0)) (.cse13 (<= ~a21~0 1)) (.cse16 (<= 1 ~a21~0)) (.cse35 (<= 5 ~a16~0)) (.cse42 (<= ~a8~0 15)) (.cse19 (<= ~a7~0 1)) (.cse43 (<= 15 ~a8~0)) (.cse20 (<= ~a20~0 0)) (.cse22 (= ~a8~0 13)) (.cse23 (= ~a16~0 4)) (.cse33 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0))) (.cse28 (= ~a17~0 0)) (.cse4 (= 5 ~a16~0)) (.cse0 (= ~a20~0 0)) (.cse29 (= ~a16~0 6)) (.cse40 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse27 (= ~a8~0 15)) (.cse24 (not .cse26)) (.cse21 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= 5 |old(~a16~0)|)) (and .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (not (<= |old(~a21~0)| 1)) (and .cse17 .cse8 .cse9 .cse10 .cse18 .cse11 .cse13 .cse16 .cse19 .cse20) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (and .cse2 (not .cse21) .cse22 .cse23 .cse24 .cse25) (and .cse0 .cse1 .cse2 .cse3 .cse23 .cse5) (and .cse6 .cse12 .cse22 .cse23 .cse13 .cse14 .cse16 .cse21) (and .cse1 .cse2 .cse26 .cse27 .cse23 .cse28) (and .cse2 .cse29 .cse12 .cse22 .cse30 .cse21) (not (<= 1 |old(~a21~0)|)) (and .cse17 .cse31 .cse6 .cse7 .cse32 .cse33 .cse34 .cse15 .cse14 .cse35 .cse19 .cse36) (and .cse2 .cse22 .cse23 .cse37 .cse28) (and .cse17 .cse38 .cse31 .cse6 .cse39 .cse40 .cse18 .cse14 .cse19 (or (< 1 ~a21~0) .cse34) .cse36) (not (= ~a12~0 8)) (and .cse2 .cse33 .cse27 .cse23 .cse24 .cse25 .cse21) (and .cse38 .cse6 .cse39 .cse40 .cse41 .cse13 .cse14 .cse16 .cse42 (< 1 ~a17~0) .cse43) (and .cse2 .cse3 .cse30 .cse23 .cse37 .cse28) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse40 .cse44 .cse22 .cse23 .cse37 .cse21) (and .cse0 .cse2 .cse40 .cse27 .cse23 .cse28) (and .cse2 .cse26 .cse3 .cse30 .cse4 .cse28) (and .cse33 .cse18 .cse44 .cse22 .cse30 .cse23 .cse5) (and .cse38 .cse6 .cse39 .cse40 .cse18 .cse41 .cse13 .cse14 .cse16 .cse42 .cse43) (and .cse2 .cse29 .cse33 .cse27 .cse24 .cse28) (and .cse2 .cse26 .cse22 .cse30 .cse23 .cse21) (not (<= |old(~a20~0)| 1)) (and .cse2 .cse33 .cse27 .cse24 .cse4 .cse25) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse33 .cse27 .cse30 .cse23 .cse24 .cse28) (and .cse1 .cse2 .cse26 .cse3 .cse4 .cse28) (not (<= 15 |old(~a8~0)|)) (and .cse17 .cse32 .cse18 .cse13 .cse16 .cse35 .cse42 .cse19 .cse43 .cse20) (and .cse26 .cse33 .cse22 .cse30 .cse23 .cse21) (and .cse2 .cse33 .cse27 .cse24 .cse4 .cse28) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse2 .cse40 .cse27 .cse4) (and .cse0 .cse2 .cse29 .cse40 .cse27 .cse24 .cse21)))) [2020-10-13 06:08:53,062 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:08:53,062 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:08:53,062 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse32 (= ~a7~0 1)) (.cse31 (= ~a20~0 1)) (.cse2 (= ~a21~0 1))) (let ((.cse13 (<= 14 ~a8~0)) (.cse14 (<= ~a8~0 14)) (.cse15 (<= ~a16~0 4)) (.cse16 (<= 4 ~a16~0)) (.cse26 (not .cse2)) (.cse5 (= ~a20~0 ~a7~0)) (.cse27 (= ~a8~0 13)) (.cse25 (<= ~a20~0 0)) (.cse10 (not .cse31)) (.cse29 (= ~a17~0 ~a7~0)) (.cse17 (<= ~a7~0 0)) (.cse12 (<= 1 ~a17~0)) (.cse33 (<= ~a16~0 5)) (.cse20 (<= ~a17~0 1)) (.cse34 (<= 5 ~a16~0)) (.cse0 (= ~a20~0 0)) (.cse6 (= ~a16~0 6)) (.cse30 (= ~a17~0 1)) (.cse18 (<= ~a21~0 1)) (.cse21 (<= 1 ~a21~0)) (.cse35 (<= ~a8~0 15)) (.cse36 (<= 15 ~a8~0)) (.cse22 (<= 1 ~a7~0)) (.cse37 (<= ~a16~0 6)) (.cse39 (<= 13 ~a8~0)) (.cse11 (<= 1 ~a20~0)) (.cse38 (<= 6 ~a16~0)) (.cse23 (<= ~a17~0 0)) (.cse19 (<= ~a20~0 1)) (.cse24 (<= ~a7~0 1)) (.cse40 (<= ~a21~0 0)) (.cse41 (<= ~a8~0 13)) (.cse7 (= ~a8~0 15)) (.cse28 (= ~a16~0 4)) (.cse8 (not .cse32)) (.cse1 (= ~a20~0 ~a17~0)) (.cse3 (= 14 ~a8~0)) (.cse4 (= 5 ~a16~0)) (.cse9 (= ~a17~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse6 .cse7 .cse8 .cse9) (and .cse2 .cse7 .cse8 .cse4 .cse10) (and .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (not (<= |old(~a21~0)| 1)) (and .cse22 .cse13 .cse14 .cse15 .cse23 .cse16 .cse18 .cse21 .cse24 .cse25) (not (<= 1 |old(~a17~0)|)) (and .cse0 .cse26 .cse27 .cse28 .cse29 .cse30) (not (<= |old(~a17~0)| 1)) (and (<= ~a20~0 ~a7~0) .cse23 .cse26 .cse27 .cse31 .cse28 .cse24) (and .cse32 .cse27 .cse31 .cse28 .cse30) (not (<= 1 |old(~a20~0)|)) (and .cse2 (not .cse30) .cse27 .cse28 .cse8 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse28 .cse5) (and .cse11 .cse17 .cse27 .cse28 .cse18 .cse19 .cse21 .cse30) (and .cse2 .cse7 .cse8 .cse4 .cse9) (and .cse2 .cse6 .cse17 .cse27 .cse31 .cse30) (not (<= 1 |old(~a21~0)|)) (and .cse2 .cse27 .cse28 .cse29 .cse9) (not (= ~a12~0 8)) (and .cse33 .cse23 .cse18 .cse21 .cse34 .cse35 .cse36 .cse25) (and .cse2 .cse7 .cse28 .cse8 .cse10 .cse30) (and .cse2 .cse3 .cse31 .cse28 .cse29 .cse9) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse37 .cse11 .cse38 (or (< 1 ~a7~0) .cse17) .cse18 .cse19 (or .cse23 (< 1 ~a17~0)) .cse21 .cse35 .cse36) (and .cse22 .cse39 .cse11 .cse12 .cse33 .cse40 .cse19 .cse20 .cse34 .cse24 .cse41) (and .cse2 .cse32 .cse3 .cse31 .cse4 .cse9) (and .cse1 .cse2 .cse7 .cse28 .cse9) (and .cse0 .cse2 .cse6 .cse7 .cse8 .cse30) (not (<= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) .cse18 .cse21 .cse35 .cse36) (and .cse22 .cse37 .cse39 .cse11 .cse38 .cse23 .cse19 .cse24 (or (< 1 ~a21~0) .cse40) .cse41) (and .cse2 .cse7 .cse31 .cse28 .cse8 .cse9) (not (<= |old(~a16~0)| 5)) (and .cse1 .cse2 .cse32 .cse3 .cse4 .cse9) (not (<= 15 |old(~a8~0)|))))) [2020-10-13 06:08:53,062 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:08:53,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:08:53 BoogieIcfgContainer [2020-10-13 06:08:53,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:08:53,101 INFO L168 Benchmark]: Toolchain (without parser) took 159912.99 ms. Allocated memory was 140.5 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 102.0 MB in the beginning and 917.6 MB in the end (delta: -815.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-13 06:08:53,102 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:08:53,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.86 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 170.3 MB in the end (delta: -68.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:53,103 INFO L168 Benchmark]: Boogie Preprocessor took 157.42 ms. Allocated memory is still 205.0 MB. Free memory was 170.3 MB in the beginning and 165.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:53,103 INFO L168 Benchmark]: RCFGBuilder took 1246.83 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.5 MB in the beginning and 178.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:53,104 INFO L168 Benchmark]: TraceAbstraction took 157754.63 ms. Allocated memory was 238.6 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 178.1 MB in the beginning and 917.6 MB in the end (delta: -739.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:08:53,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.86 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 170.3 MB in the end (delta: -68.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.42 ms. Allocated memory is still 205.0 MB. Free memory was 170.3 MB in the beginning and 165.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1246.83 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.5 MB in the beginning and 178.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 157754.63 ms. Allocated memory was 238.6 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 178.1 MB in the beginning and 917.6 MB in the end (delta: -739.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 494]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((a20 == 0 && a20 == a17) && a21 == 1) && 14 == a8) && 5 == a16) && a20 == a7) || !(5 <= \old(a16))) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0)) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1))) || ((((((((((1 <= a20 && 1 <= a17) && 14 <= a8) && a8 <= 14) && a16 <= 4) && 4 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21)) || !(\old(a21) <= 1)) || (((((((((1 <= a7 && 14 <= a8) && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a7 <= 1) && a20 <= 0)) || !(1 <= \old(a17))) || (((((a20 == 0 && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == a7) && a17 == 1)) || !(\old(a17) <= 1)) || ((((((a20 <= a7 && a17 <= 0) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a7 <= 1)) || ((((a7 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || !(1 <= \old(a20))) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || (((((a20 == 0 && a20 == a17) && a21 == 1) && 14 == a8) && a16 == 4) && a20 == a7)) || (((((((1 <= a20 && a7 <= 0) && a8 == 13) && a16 == 4) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a17 == 1)) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && a7 <= 0) && a8 == 13) && a20 == 1) && a17 == 1)) || !(1 <= \old(a21))) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a17 == 0)) || !(a12 == 8)) || (((((((a16 <= 5 && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8) && a20 <= 0)) || (((((a21 == 1 && a8 == 15) && a16 == 4) && !(a7 == 1)) && !(a20 == 1)) && a17 == 1)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a17 == a7) && a17 == 0)) || !(\old(a8) <= 15)) || !(\old(a7) <= 0)) || (((((((((a16 <= 6 && 1 <= a20) && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && (a17 <= 0 || 1 < a17)) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || ((((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 5) && a21 <= 0) && a20 <= 1) && a17 <= 1) && 5 <= a16) && a7 <= 1) && a8 <= 13)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || (((((a20 == 0 && a21 == 1) && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1)) || !(\old(a20) <= 1)) || ((((((a7 == \old(a7) && a17 == \old(a17)) && a16 == \old(a16)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((((((((1 <= a7 && a16 <= 6) && 13 <= a8) && 1 <= a20) && 6 <= a16) && a17 <= 0) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || (((((a21 == 1 && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1)) && a17 == 0)) || !(\old(a16) <= 5)) || (((((a20 == a17 && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16) && a17 == 0)) || !(15 <= \old(a8)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 147.3s, OverallIterations: 32, TraceHistogramMax: 7, AutomataDifference: 62.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 825 SDtfs, 9362 SDslu, 1186 SDs, 0 SdLazy, 22744 SolverSat, 1307 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 813 GetRequests, 366 SyntacticMatches, 24 SemanticMatches, 423 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 43.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=610occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 32 MinimizatonAttempts, 300 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 214 PreInvPairs, 270 NumberOfFragments, 3975 HoareAnnotationTreeSize, 214 FomulaSimplifications, 2029 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3347 FormulaSimplificationTreeSizeReductionInter, 9.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 77.2s InterpolantComputationTime, 7800 NumberOfCodeBlocks, 7800 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 7768 ConstructedInterpolants, 0 QuantifiedInterpolants, 20405227 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 1 PerfectInterpolantSequences, 8321/8434 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...