/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/Problem02_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:10:48,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:10:48,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:10:48,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:10:48,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:10:48,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:10:48,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:10:48,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:10:48,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:10:48,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:10:48,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:10:48,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:10:48,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:10:48,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:10:48,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:10:48,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:10:48,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:10:48,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:10:48,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:10:48,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:10:48,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:10:48,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:10:48,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:10:48,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:10:48,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:10:48,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:10:48,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:10:48,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:10:48,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:10:48,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:10:48,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:10:48,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:10:48,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:10:48,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:10:48,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:10:48,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:10:48,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:10:48,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:10:48,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:10:48,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:10:48,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:10:48,298 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 06:10:48,320 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:10:48,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:10:48,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:10:48,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:10:48,321 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:10:48,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:10:48,322 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:10:48,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:10:48,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:10:48,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:10:48,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:10:48,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:10:48,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:10:48,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:10:48,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:10:48,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:10:48,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:10:48,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:10:48,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:10:48,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:10:48,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:10:48,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:10:48,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:10:48,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:10:48,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:10:48,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:10:48,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:10:48,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:10:48,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:10:48,326 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 06:10:48,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:10:48,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:10:48,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:10:48,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:10:48,654 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:10:48,655 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label28.c [2020-10-13 06:10:48,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0d32834c/842b33dd6e72401f84c7398c48a9cabb/FLAGbf524bbb4 [2020-10-13 06:10:49,313 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:10:49,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label28.c [2020-10-13 06:10:49,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0d32834c/842b33dd6e72401f84c7398c48a9cabb/FLAGbf524bbb4 [2020-10-13 06:10:49,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0d32834c/842b33dd6e72401f84c7398c48a9cabb [2020-10-13 06:10:49,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:10:49,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:10:49,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:10:49,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:10:49,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:10:49,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:10:49" (1/1) ... [2020-10-13 06:10:49,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2584cbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:49, skipping insertion in model container [2020-10-13 06:10:49,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:10:49" (1/1) ... [2020-10-13 06:10:49,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:10:49,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:10:50,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:10:50,088 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:10:50,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:10:50,331 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:10:50,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50 WrapperNode [2020-10-13 06:10:50,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:10:50,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:10:50,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:10:50,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:10:50,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (1/1) ... [2020-10-13 06:10:50,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (1/1) ... [2020-10-13 06:10:50,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (1/1) ... [2020-10-13 06:10:50,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (1/1) ... [2020-10-13 06:10:50,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (1/1) ... [2020-10-13 06:10:50,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (1/1) ... [2020-10-13 06:10:50,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (1/1) ... [2020-10-13 06:10:50,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:10:50,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:10:50,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:10:50,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:10:50,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (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 06:10:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:10:50,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:10:50,550 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:10:50,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:10:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:10:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:10:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:10:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:10:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:10:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:10:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:10:51,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:10:51,867 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:10:51,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:10:51 BoogieIcfgContainer [2020-10-13 06:10:51,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:10:51,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:10:51,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:10:51,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:10:51,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:10:49" (1/3) ... [2020-10-13 06:10:51,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405900c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:10:51, skipping insertion in model container [2020-10-13 06:10:51,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:50" (2/3) ... [2020-10-13 06:10:51,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405900c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:10:51, skipping insertion in model container [2020-10-13 06:10:51,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:10:51" (3/3) ... [2020-10-13 06:10:51,892 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label28.c [2020-10-13 06:10:51,902 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:10:51,910 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:10:51,923 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:10:51,949 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:10:51,950 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:10:51,950 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:10:51,950 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:10:51,951 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:10:51,951 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:10:51,951 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:10:51,951 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:10:51,977 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:10:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 06:10:51,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:51,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:52,000 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:52,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:52,006 INFO L82 PathProgramCache]: Analyzing trace with hash 619051294, now seen corresponding path program 1 times [2020-10-13 06:10:52,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:52,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36036594] [2020-10-13 06:10:52,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:52,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:52,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:53,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:53,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 06:10:53,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:53,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-13 06:10:53,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:53,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:10:53,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:10:53,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:10:53,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:10:54,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:54,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:54,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:54,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:10:54,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:10:54,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:54,433 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 06:10:54,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36036594] [2020-10-13 06:10:54,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:10:54,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 06:10:54,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800753748] [2020-10-13 06:10:54,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 06:10:54,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:54,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 06:10:54,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:10:54,460 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2020-10-13 06:10:55,109 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:10:55,326 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-13 06:10:55,770 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 06:10:56,267 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-13 06:10:57,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:57,180 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:10:57,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:10:57,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 130 [2020-10-13 06:10:57,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:57,199 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:10:57,199 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:10:57,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:10:57,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:10:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:10:57,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:10:57,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:10:57,272 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 130 [2020-10-13 06:10:57,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:57,272 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:10:57,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 06:10:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:10:57,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 06:10:57,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:57,277 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:57,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:10:57,278 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:57,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:57,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1594933809, now seen corresponding path program 1 times [2020-10-13 06:10:57,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:57,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751834803] [2020-10-13 06:10:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:57,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:57,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:58,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:59,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:59,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 06:10:59,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:59,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1729 [2020-10-13 06:10:59,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:10:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:10:59,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:59,669 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-13 06:10:59,815 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 42 [2020-10-13 06:10:59,958 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 38 [2020-10-13 06:11:00,092 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 34 [2020-10-13 06:11:00,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:00,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:00,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:00,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:00,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:00,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:11:00,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:00,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:00,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:00,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:00,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:11:00,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:00,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:00,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:00,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:11:00,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:11:00,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:11:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:00,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751834803] [2020-10-13 06:11:00,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:00,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:00,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195523654] [2020-10-13 06:11:00,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:00,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:00,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:00,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:00,544 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:11:00,825 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 06:11:01,190 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-10-13 06:11:01,843 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-13 06:11:02,074 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2020-10-13 06:11:02,279 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-13 06:11:02,491 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2020-10-13 06:11:02,786 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-13 06:11:02,980 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-13 06:11:03,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:03,538 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:11:03,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:11:03,539 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 139 [2020-10-13 06:11:03,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:03,543 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:11:03,543 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:11:03,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:11:03,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:11:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:11:03,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:11:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:11:03,562 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 139 [2020-10-13 06:11:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:03,563 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:11:03,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:11:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-13 06:11:03,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:03,566 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:03,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:11:03,566 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:03,567 INFO L82 PathProgramCache]: Analyzing trace with hash -111192505, now seen corresponding path program 1 times [2020-10-13 06:11:03,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:03,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685412771] [2020-10-13 06:11:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:03,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:03,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:05,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:05,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 06:11:05,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:05,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1421 [2020-10-13 06:11:05,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:11:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:11:05,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:05,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:05,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:05,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:05,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:05,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:05,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:05,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:05,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:05,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:05,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:05,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:05,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:05,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:05,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:11:05,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:11:05,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:05,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:05,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685412771] [2020-10-13 06:11:05,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:05,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:05,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867407894] [2020-10-13 06:11:05,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:05,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:05,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:05,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:05,530 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:11:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:07,304 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:11:07,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:11:07,304 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 143 [2020-10-13 06:11:07,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:07,326 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:11:07,326 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:11:07,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:11:07,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:11:07,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:11:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:11:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:11:07,350 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 143 [2020-10-13 06:11:07,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:07,351 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:11:07,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:07,351 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:11:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-13 06:11:07,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:07,354 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:07,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:11:07,355 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:07,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1368930657, now seen corresponding path program 1 times [2020-10-13 06:11:07,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:07,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968294674] [2020-10-13 06:11:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:07,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:07,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 06:11:07,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:07,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-13 06:11:07,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:07,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:11:07,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:11:07,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:11:08,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:08,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:08,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:08,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:08,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:08,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:08,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:08,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:08,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:08,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:08,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:08,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:08,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:08,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:08,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:08,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:11:08,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:08,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:08,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:11:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:08,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:08,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:08,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:11:08,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:08,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:11:08,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:08,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:08,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:08,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:11:08,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:11:08,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968294674] [2020-10-13 06:11:08,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:08,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:08,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872774631] [2020-10-13 06:11:08,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:08,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:08,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:08,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:08,343 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:11:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:09,377 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:11:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:09,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-10-13 06:11:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:09,381 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:11:09,381 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:11:09,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 06:11:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:11:09,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:11:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:11:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:11:09,402 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 165 [2020-10-13 06:11:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:09,402 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:11:09,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:11:09,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-13 06:11:09,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:09,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:09,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:11:09,406 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:09,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:09,406 INFO L82 PathProgramCache]: Analyzing trace with hash -716762210, now seen corresponding path program 1 times [2020-10-13 06:11:09,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:09,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161060176] [2020-10-13 06:11:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:09,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:10,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:10,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 06:11:10,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:10,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1354 [2020-10-13 06:11:10,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:11:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:11:10,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:11,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:11,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:11,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:11,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:11,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:11,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:11,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:11,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:11,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:11,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:11,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:11:11,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:11:11,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:11,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161060176] [2020-10-13 06:11:11,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:11,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:11,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717564484] [2020-10-13 06:11:11,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:11,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:11,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:11,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:11,291 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:11:12,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:12,896 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:11:12,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:11:12,897 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 164 [2020-10-13 06:11:12,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:12,902 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:11:12,903 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:11:12,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:11:12,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:11:12,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:11:12,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:11:12,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:11:12,937 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 164 [2020-10-13 06:11:12,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:12,939 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:11:12,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:11:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-13 06:11:12,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:12,943 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:12,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:11:12,944 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:12,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:12,944 INFO L82 PathProgramCache]: Analyzing trace with hash 318440953, now seen corresponding path program 1 times [2020-10-13 06:11:12,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:12,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636217829] [2020-10-13 06:11:12,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:13,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:13,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:13,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:13,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:14,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 06:11:14,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:14,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1953 [2020-10-13 06:11:14,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:14,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:14,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:11:14,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:11:14,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:15,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:15,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:15,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:15,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:15,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:15,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:15,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:15,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:15,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:15,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:15,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:15,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:15,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:15,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:15,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:15,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:11:15,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:15,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:15,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:11:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:15,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:15,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:15,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:11:15,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:15,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:15,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:15,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:11:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:11:15,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636217829] [2020-10-13 06:11:15,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:15,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:15,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947466276] [2020-10-13 06:11:15,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:15,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:15,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:15,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:15,559 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:11:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:16,602 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:11:16,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:16,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-10-13 06:11:16,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:16,607 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:11:16,607 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:11:16,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 06:11:16,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:11:16,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:11:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:11:16,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:11:16,639 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 172 [2020-10-13 06:11:16,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:16,640 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:11:16,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:16,640 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:11:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-13 06:11:16,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:16,645 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:16,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:11:16,648 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:16,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:16,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1138019980, now seen corresponding path program 1 times [2020-10-13 06:11:16,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:16,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281179396] [2020-10-13 06:11:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:16,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:16,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:18,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 06:11:18,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:18,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1469 [2020-10-13 06:11:18,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:11:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:11:18,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:18,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:18,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:18,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:18,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:18,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:18,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:18,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:18,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:18,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:18,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:18,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:18,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:18,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:18,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 06:11:18,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:11:18,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:18,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281179396] [2020-10-13 06:11:18,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:18,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:18,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712162508] [2020-10-13 06:11:18,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:18,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:18,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:18,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:18,974 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:11:19,528 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-13 06:11:21,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:21,325 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:11:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:11:21,326 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 181 [2020-10-13 06:11:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:21,329 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:11:21,329 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:11:21,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:11:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:11:21,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:11:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:11:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:11:21,353 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 181 [2020-10-13 06:11:21,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:21,354 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:11:21,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:11:21,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-13 06:11:21,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:21,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:21,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:11:21,357 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:21,358 INFO L82 PathProgramCache]: Analyzing trace with hash 2126721032, now seen corresponding path program 1 times [2020-10-13 06:11:21,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:21,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460682317] [2020-10-13 06:11:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:21,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:21,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:21,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:22,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:22,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-13 06:11:22,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:22,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-13 06:11:22,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:22,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:22,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:11:22,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:11:22,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:23,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:23,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:23,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:23,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:23,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:23,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:23,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:23,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:23,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:23,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:23,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:23,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:11:23,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 06:11:23,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:11:23,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:23,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460682317] [2020-10-13 06:11:23,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:23,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:23,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490034346] [2020-10-13 06:11:23,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:23,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:23,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:23,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:23,435 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:11:25,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:25,192 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:11:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:11:25,192 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2020-10-13 06:11:25,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:25,197 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:11:25,197 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:11:25,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:11:25,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:11:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:11:25,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:11:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:11:25,223 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 187 [2020-10-13 06:11:25,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:25,223 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:11:25,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:25,224 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:11:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-13 06:11:25,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:25,227 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:25,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:11:25,228 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:25,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:25,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1352605650, now seen corresponding path program 1 times [2020-10-13 06:11:25,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:25,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361325756] [2020-10-13 06:11:25,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:25,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:25,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:25,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:27,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-13 06:11:27,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:27,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1762 [2020-10-13 06:11:27,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:11:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:11:27,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:27,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:27,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:27,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:27,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:27,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:27,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:27,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:27,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:27,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:27,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:27,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:27,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:27,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:27,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:27,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:27,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:27,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:11:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:27,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:27,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:11:27,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:27,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 06:11:27,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:11:27,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:11:27,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361325756] [2020-10-13 06:11:27,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:27,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:27,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656416186] [2020-10-13 06:11:27,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:27,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:27,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:27,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:27,417 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-13 06:11:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:28,386 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:11:28,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:28,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-10-13 06:11:28,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:28,395 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:11:28,396 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:11:28,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 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 06:11:28,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:11:28,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:11:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:11:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:11:28,422 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 212 [2020-10-13 06:11:28,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:28,423 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:11:28,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:28,423 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:11:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-13 06:11:28,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:28,430 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, 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 06:11:28,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:11:28,431 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:28,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1999455292, now seen corresponding path program 1 times [2020-10-13 06:11:28,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:28,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937470931] [2020-10-13 06:11:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:28,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:28,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:29,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:30,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:30,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-13 06:11:30,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:30,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2379 [2020-10-13 06:11:30,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:11:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:11:30,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:31,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:31,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:31,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:31,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:31,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:31,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:31,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:31,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:31,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:31,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:31,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:11:31,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:31,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:11:31,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:31,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:31,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:31,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:31,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:11:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:31,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:31,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:31,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:11:31,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:11:31,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:11:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:11:31,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937470931] [2020-10-13 06:11:31,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:31,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:31,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097778868] [2020-10-13 06:11:31,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:31,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:31,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:31,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:31,377 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 12 states. [2020-10-13 06:11:32,094 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-13 06:11:32,313 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-13 06:11:32,678 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-13 06:11:32,886 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-13 06:11:33,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:33,637 INFO L93 Difference]: Finished difference Result 1000 states and 1211 transitions. [2020-10-13 06:11:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:11:33,638 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 223 [2020-10-13 06:11:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:33,640 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 06:11:33,641 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:11:33,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:11:33,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:11:33,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2020-10-13 06:11:33,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:11:33,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 613 transitions. [2020-10-13 06:11:33,659 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 613 transitions. Word has length 223 [2020-10-13 06:11:33,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:33,660 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 613 transitions. [2020-10-13 06:11:33,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:33,660 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 613 transitions. [2020-10-13 06:11:33,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-13 06:11:33,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:33,664 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:11:33,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:11:33,664 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:33,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:33,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1109249078, now seen corresponding path program 1 times [2020-10-13 06:11:33,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:33,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019936886] [2020-10-13 06:11:33,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:33,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:33,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:34,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:34,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-13 06:11:34,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:34,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 572 [2020-10-13 06:11:34,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:34,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:34,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:11:34,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:11:34,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:34,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:34,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:34,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:34,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:34,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:34,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:34,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:34,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:34,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:34,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:34,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:34,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:34,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:34,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:34,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:34,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:34,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:11:34,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:34,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:34,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:11:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:34,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:34,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:34,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:11:34,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:34,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 06:11:34,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:11:34,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:11:34,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019936886] [2020-10-13 06:11:34,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:34,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:34,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224782739] [2020-10-13 06:11:34,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:34,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:34,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:34,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:34,733 INFO L87 Difference]: Start difference. First operand 534 states and 613 transitions. Second operand 5 states. [2020-10-13 06:11:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:35,704 INFO L93 Difference]: Finished difference Result 1157 states and 1378 transitions. [2020-10-13 06:11:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:35,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2020-10-13 06:11:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:35,710 INFO L225 Difference]: With dead ends: 1157 [2020-10-13 06:11:35,710 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:11:35,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 06:11:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:11:35,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:11:35,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:11:35,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 531 transitions. [2020-10-13 06:11:35,726 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 531 transitions. Word has length 236 [2020-10-13 06:11:35,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:35,727 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 531 transitions. [2020-10-13 06:11:35,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:35,727 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 531 transitions. [2020-10-13 06:11:35,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-13 06:11:35,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:35,730 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:11:35,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:11:35,730 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:35,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:35,731 INFO L82 PathProgramCache]: Analyzing trace with hash -583376759, now seen corresponding path program 1 times [2020-10-13 06:11:35,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:35,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902831509] [2020-10-13 06:11:35,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:35,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:35,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:35,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:36,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:36,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:36,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:38,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:40,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:40,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-13 06:11:40,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:11:40,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4419 [2020-10-13 06:11:40,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:11:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:11:40,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:11:40,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:40,714 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 34 [2020-10-13 06:11:40,839 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 32 [2020-10-13 06:11:40,962 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 31 [2020-10-13 06:11:41,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:41,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:41,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:41,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:41,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:41,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:41,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:41,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:41,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:41,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:11:41,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:41,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:11:41,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:41,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:11:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:41,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:41,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:41,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:11:41,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:41,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:41,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:41,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:41,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:11:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:41,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:41,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:41,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:11:41,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:41,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:11:41,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:11:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:11:41,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:11:41,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902831509] [2020-10-13 06:11:41,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:41,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:11:41,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876469875] [2020-10-13 06:11:41,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:11:41,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:41,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:11:41,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:11:41,439 INFO L87 Difference]: Start difference. First operand 458 states and 531 transitions. Second operand 13 states. [2020-10-13 06:11:42,227 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2020-10-13 06:11:42,440 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2020-10-13 06:11:42,882 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-10-13 06:11:43,587 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-10-13 06:11:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:44,437 INFO L93 Difference]: Finished difference Result 1152 states and 1420 transitions. [2020-10-13 06:11:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:11:44,444 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 243 [2020-10-13 06:11:44,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:44,446 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:11:44,447 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:11:44,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:11:44,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:11:44,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 461. [2020-10-13 06:11:44,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:11:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 542 transitions. [2020-10-13 06:11:44,465 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 542 transitions. Word has length 243 [2020-10-13 06:11:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:44,465 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 542 transitions. [2020-10-13 06:11:44,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:11:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 542 transitions. [2020-10-13 06:11:44,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-13 06:11:44,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:44,468 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, 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] [2020-10-13 06:11:44,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:11:44,468 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:44,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:44,469 INFO L82 PathProgramCache]: Analyzing trace with hash -339929042, now seen corresponding path program 1 times [2020-10-13 06:11:44,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:44,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697104489] [2020-10-13 06:11:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:44,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:46,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:46,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-13 06:11:46,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:46,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1824 [2020-10-13 06:11:46,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:46,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:46,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:11:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:11:46,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:46,604 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:11:46,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:46,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:46,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:46,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:46,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:46,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:46,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:46,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:47,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:47,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:47,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:47,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:47,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:47,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:47,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:47,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:47,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:47,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:47,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:47,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:47,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:47,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:47,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:47,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:11:47,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:11:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:11:47,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697104489] [2020-10-13 06:11:47,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:47,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:47,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311109548] [2020-10-13 06:11:47,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:47,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:47,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:47,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:47,194 INFO L87 Difference]: Start difference. First operand 461 states and 542 transitions. Second operand 12 states. [2020-10-13 06:11:48,085 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:11:48,296 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:11:48,522 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2020-10-13 06:11:48,733 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-10-13 06:11:49,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:49,325 INFO L93 Difference]: Finished difference Result 954 states and 1141 transitions. [2020-10-13 06:11:49,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:11:49,330 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 258 [2020-10-13 06:11:49,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:49,332 INFO L225 Difference]: With dead ends: 954 [2020-10-13 06:11:49,332 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:11:49,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:11:49,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:11:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:11:49,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:11:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 584 transitions. [2020-10-13 06:11:49,356 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 584 transitions. Word has length 258 [2020-10-13 06:11:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:49,357 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 584 transitions. [2020-10-13 06:11:49,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:49,357 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 584 transitions. [2020-10-13 06:11:49,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-13 06:11:49,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:49,359 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:11:49,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:11:49,360 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:49,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1549263555, now seen corresponding path program 1 times [2020-10-13 06:11:49,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:49,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775621271] [2020-10-13 06:11:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:49,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:49,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:49,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:49,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:50,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:51,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:51,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-13 06:11:51,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:11:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2197 [2020-10-13 06:11:51,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:11:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:11:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:51,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:51,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:51,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:51,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:51,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:51,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:51,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:51,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:51,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:51,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:51,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:51,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:11:51,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:51,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:51,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:51,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:51,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:51,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:11:51,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:51,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:51,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:51,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:51,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:51,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:11:51,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:51,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:11:51,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:51,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:51,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:51,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:11:51,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:11:51,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775621271] [2020-10-13 06:11:51,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:51,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:51,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055225380] [2020-10-13 06:11:51,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:51,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:51,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:51,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:51,939 INFO L87 Difference]: Start difference. First operand 496 states and 584 transitions. Second operand 5 states. [2020-10-13 06:11:52,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:52,865 INFO L93 Difference]: Finished difference Result 1072 states and 1304 transitions. [2020-10-13 06:11:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:52,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 272 [2020-10-13 06:11:52,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:52,870 INFO L225 Difference]: With dead ends: 1072 [2020-10-13 06:11:52,871 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:11:52,874 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 06:11:52,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:11:52,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:11:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:11:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 579 transitions. [2020-10-13 06:11:52,889 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 579 transitions. Word has length 272 [2020-10-13 06:11:52,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:52,890 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 579 transitions. [2020-10-13 06:11:52,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 579 transitions. [2020-10-13 06:11:52,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-13 06:11:52,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:52,893 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-13 06:11:52,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:11:52,893 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:52,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:52,893 INFO L82 PathProgramCache]: Analyzing trace with hash -2096540567, now seen corresponding path program 1 times [2020-10-13 06:11:52,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:52,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397739899] [2020-10-13 06:11:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:52,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:53,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:53,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:53,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:53,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:54,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:54,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:57,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-13 06:11:57,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:11:57,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4865 [2020-10-13 06:11:57,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:11:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:11:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:11:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:58,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:58,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:58,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:58,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:58,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:58,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:58,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:58,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:58,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:58,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:58,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:58,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:58,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:58,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:58,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:11:58,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:58,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:58,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:58,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:58,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:11:58,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:58,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:58,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:58,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:11:58,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:11:58,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:58,370 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:11:58,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397739899] [2020-10-13 06:11:58,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:58,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:11:58,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891228570] [2020-10-13 06:11:58,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:11:58,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:58,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:11:58,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:11:58,372 INFO L87 Difference]: Start difference. First operand 496 states and 579 transitions. Second operand 13 states. [2020-10-13 06:11:59,137 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-13 06:11:59,341 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-13 06:11:59,694 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-13 06:12:00,057 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-13 06:12:00,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:00,808 INFO L93 Difference]: Finished difference Result 1366 states and 1675 transitions. [2020-10-13 06:12:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:12:00,809 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 279 [2020-10-13 06:12:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:00,813 INFO L225 Difference]: With dead ends: 1366 [2020-10-13 06:12:00,813 INFO L226 Difference]: Without dead ends: 875 [2020-10-13 06:12:00,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:12:00,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-10-13 06:12:00,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2020-10-13 06:12:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:12:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1000 transitions. [2020-10-13 06:12:00,839 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1000 transitions. Word has length 279 [2020-10-13 06:12:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:00,839 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1000 transitions. [2020-10-13 06:12:00,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:12:00,840 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1000 transitions. [2020-10-13 06:12:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-13 06:12:00,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:00,843 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:00,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:12:00,844 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:00,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:00,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1443723842, now seen corresponding path program 1 times [2020-10-13 06:12:00,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:00,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133109240] [2020-10-13 06:12:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:00,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:00,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:01,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 06:12:01,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:12:01,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-13 06:12:01,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:01,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:01,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:12:01,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:12:01,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:01,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:01,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:01,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:01,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:01,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:01,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:01,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:01,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:01,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:01,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:01,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:12:01,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:01,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:01,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:01,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:12:01,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:01,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:01,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:01,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:01,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:12:01,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:01,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:12:01,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:12:01,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:12:01,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133109240] [2020-10-13 06:12:01,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:01,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:01,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036640906] [2020-10-13 06:12:01,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:01,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:01,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:01,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:01,560 INFO L87 Difference]: Start difference. First operand 867 states and 1000 transitions. Second operand 5 states. [2020-10-13 06:12:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:02,506 INFO L93 Difference]: Finished difference Result 1819 states and 2146 transitions. [2020-10-13 06:12:02,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:02,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 284 [2020-10-13 06:12:02,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:02,517 INFO L225 Difference]: With dead ends: 1819 [2020-10-13 06:12:02,517 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:12:02,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 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 06:12:02,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:12:02,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:12:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:12:02,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 985 transitions. [2020-10-13 06:12:02,544 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 985 transitions. Word has length 284 [2020-10-13 06:12:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:02,545 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 985 transitions. [2020-10-13 06:12:02,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 985 transitions. [2020-10-13 06:12:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-13 06:12:02,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:02,549 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:02,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:12:02,550 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:02,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:02,550 INFO L82 PathProgramCache]: Analyzing trace with hash 814956940, now seen corresponding path program 1 times [2020-10-13 06:12:02,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:02,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096110046] [2020-10-13 06:12:02,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:02,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:02,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:02,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:04,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-13 06:12:06,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:12:06,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3555 [2020-10-13 06:12:06,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:12:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:12:06,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:06,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:06,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:06,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:06,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:06,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:06,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:06,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:06,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:06,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:06,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:06,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:06,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:12:06,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:06,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:06,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:06,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:06,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:06,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:06,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:06,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:06,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:12:06,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:06,462 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:12:06,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096110046] [2020-10-13 06:12:06,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:06,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:12:06,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641501608] [2020-10-13 06:12:06,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:12:06,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:06,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:12:06,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:12:06,464 INFO L87 Difference]: Start difference. First operand 867 states and 985 transitions. Second operand 5 states. [2020-10-13 06:12:07,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:07,382 INFO L93 Difference]: Finished difference Result 1817 states and 2108 transitions. [2020-10-13 06:12:07,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:12:07,383 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 289 [2020-10-13 06:12:07,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:07,388 INFO L225 Difference]: With dead ends: 1817 [2020-10-13 06:12:07,388 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:12:07,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 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 06:12:07,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:12:07,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:12:07,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:12:07,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 972 transitions. [2020-10-13 06:12:07,412 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 972 transitions. Word has length 289 [2020-10-13 06:12:07,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:07,412 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 972 transitions. [2020-10-13 06:12:07,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:12:07,413 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 972 transitions. [2020-10-13 06:12:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-13 06:12:07,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:12:07,417 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:07,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:12:07,417 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:12:07,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:12:07,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1389265347, now seen corresponding path program 1 times [2020-10-13 06:12:07,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:12:07,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911785991] [2020-10-13 06:12:07,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:12:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:07,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:07,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:07,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:07,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:08,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:08,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:08,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:09,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:09,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:09,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:10,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-13 06:12:10,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 06:12:10,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3285 [2020-10-13 06:12:10,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:10,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:10,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:12:10,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:12:10,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:10,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:10,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:10,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:10,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:10,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:12:10,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:10,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:10,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:10,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:10,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:10,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:10,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:10,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:10,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:10,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:12:10,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:10,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:10,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:10,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:10,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:10,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:10,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:12:10,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:10,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:10,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:10,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:10,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:10,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:12:10,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:12:10,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:12:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:10,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:12:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:10,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:11,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:11,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:12:11,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:11,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 06:12:11,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:12:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:12:11,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:12:11,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911785991] [2020-10-13 06:12:11,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:11,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:12:11,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281095207] [2020-10-13 06:12:11,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:12:11,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:11,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:12:11,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:12:11,167 INFO L87 Difference]: Start difference. First operand 867 states and 972 transitions. Second operand 7 states. [2020-10-13 06:12:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:11,917 INFO L93 Difference]: Finished difference Result 1260 states and 1389 transitions. [2020-10-13 06:12:11,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:12:11,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2020-10-13 06:12:11,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:11,919 INFO L225 Difference]: With dead ends: 1260 [2020-10-13 06:12:11,919 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:12:11,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:12:11,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:12:11,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:12:11,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:12:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:12:11,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 344 [2020-10-13 06:12:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:11,924 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:12:11,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:12:11,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:12:11,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:12:11,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:12:11,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:12:12,980 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 131 [2020-10-13 06:12:13,753 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 163 [2020-10-13 06:12:16,102 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 242 DAG size of output: 180 [2020-10-13 06:12:16,665 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2020-10-13 06:12:17,330 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 103 [2020-10-13 06:12:17,335 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:12:17,335 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:12:17,335 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:12:17,335 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,336 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,336 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,336 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,336 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,336 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:12:17,337 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:12:17,337 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:12:17,337 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:12:17,337 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:12:17,337 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:12:17,337 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:12:17,337 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:12:17,337 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:12:17,338 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:12:17,338 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:12:17,338 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:12:17,338 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:12:17,338 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,338 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,338 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,338 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:12:17,339 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,340 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,341 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,341 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 544) no Hoare annotation was computed. [2020-10-13 06:12:17,341 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:12:17,341 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:12:17,341 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:12:17,341 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:12:17,341 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:12:17,341 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,342 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:12:17,343 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:12:17,344 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:12:17,345 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:12:17,346 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,347 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,348 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:12:17,349 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:12:17,350 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:12:17,350 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,350 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,350 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse27 (= |old(~a19~0)| 1)) (.cse2 (= |old(~a25~0)| 1)) (.cse4 (= |old(~a11~0)| 1))) (let ((.cse15 (not (<= 8 |old(~a17~0)|))) (.cse25 (= ~a19~0 1)) (.cse0 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse5 (= ~a19~0 0)) (.cse9 (= 7 ~a28~0)) (.cse11 (not (= 7 |old(~a28~0)|))) (.cse26 (not (= |old(~a11~0)| |old(~a25~0)|))) (.cse12 (not (<= |old(~a19~0)| 1))) (.cse14 (not (<= |old(~a17~0)| 8))) (.cse16 (not (<= 1 |old(~a19~0)|))) (.cse7 (= ~a25~0 |old(~a25~0)|)) (.cse18 (<= ~a17~0 8)) (.cse30 (not (= |old(~a19~0)| |old(~a25~0)|))) (.cse21 (not (= 0 |old(~a25~0)|))) (.cse31 (not (= 7 |old(~a17~0)|))) (.cse32 (= 7 ~a17~0)) (.cse23 (= ~a28~0 9)) (.cse1 (not (= 0 |old(~a19~0)|))) (.cse22 (not (= 9 |old(~a28~0)|))) (.cse24 (not .cse4)) (.cse13 (not .cse2)) (.cse28 (not (= 10 |old(~a28~0)|))) (.cse20 (not .cse27)) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse6 (= ~a11~0 |old(~a11~0)|)) (.cse8 (= ~a17~0 8)) (.cse17 (= ~a25~0 1)) (.cse19 (= ~a19~0 |old(~a19~0)|)) (.cse29 (= ~a28~0 10)) (.cse10 (not (= ~a21~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and .cse5 .cse6 .cse7 .cse8 .cse9) .cse10 .cse11) (or .cse12 .cse13 .cse14 .cse15 .cse16 (and (= ~a28~0 |old(~a28~0)|) .cse6 (<= 8 ~a17~0) .cse17 .cse18 .cse19) .cse4 .cse10) (or .cse20 .cse3 .cse21 .cse22 .cse10 (and .cse6 .cse7 .cse8 .cse23 .cse19) .cse24) (or (not (<= |old(~a25~0)| 1)) .cse12 .cse14 (not (<= |old(~a11~0)| 1)) .cse15 .cse16 (not (<= |old(~a28~0)| 9)) .cse10 (not (<= 1 |old(~a11~0)|)) (not (<= 1 |old(~a25~0)|)) (and (= ~a17~0 |old(~a17~0)|) (<= 1 ~a11~0) (<= 9 ~a28~0) (<= 1 ~a25~0) (<= ~a11~0 1) (<= ~a28~0 9) (<= ~a25~0 1) .cse19) (not (<= 9 |old(~a28~0)|))) (or .cse0 (and (= ~a25~0 ~a11~0) .cse25 .cse7 .cse8 .cse9) .cse20 (not (= 0 |old(~a11~0)|)) .cse3 .cse10 .cse11 .cse26) (or .cse0 (and .cse6 .cse7 .cse8 (= ~a28~0 8) .cse19) .cse27 .cse3 .cse21 .cse4 .cse10 (not (= 8 |old(~a28~0)|))) (or .cse0 .cse20 .cse3 .cse4 .cse22 .cse10 (and .cse6 .cse25 .cse7 .cse8 .cse23)) (or .cse0 .cse13 .cse28 (and .cse5 .cse6 .cse8 .cse17 .cse29) .cse1 .cse3 .cse4 .cse10) (or .cse27 (and .cse6 .cse7 .cse8 .cse9 .cse19) .cse3 .cse21 .cse10 .cse11 .cse24) (or .cse13 (not (= |old(~a17~0)| |old(~a28~0)|)) .cse30 .cse10 (and .cse6 .cse9 .cse17 .cse19 (= ~a28~0 ~a17~0)) .cse11 .cse26) (or .cse12 .cse14 (not (<= |old(~a28~0)| 10)) .cse16 .cse10 (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| 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)))) (and .cse6 (< 9 ~a28~0) .cse7 .cse18 (< 7 ~a17~0) (<= ~a28~0 10) .cse19) (and (not (<= 2 |old(~a11~0)|)) (not (<= |old(~a11~0)| 0))) (not (< 7 |old(~a17~0)|)) (not (< 9 |old(~a28~0)|))) (or .cse28 .cse31 .cse30 .cse21 .cse10 (and .cse32 .cse6 (= ~a25~0 ~a19~0) .cse19 .cse29) .cse24) (or .cse13 .cse31 (and .cse32 .cse6 .cse17 .cse23 .cse19) .cse1 .cse22 .cse10 .cse24) (or .cse13 .cse28 .cse20 .cse3 (and .cse6 .cse8 .cse17 .cse19 .cse29) .cse10)))) [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:12:17,351 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:12:17,352 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:12:17,353 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:12:17,354 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:12:17,355 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:12:17,355 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0) (= ~a11~0 0) (<= ~a19~0 1) (<= 1 ~a19~0)) [2020-10-13 06:12:17,355 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:12:17,355 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:12:17,355 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-13 06:12:17,355 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (= ~a11~0 1)) (.cse12 (= ~a19~0 1))) (let ((.cse17 (not .cse12)) (.cse0 (= ~a19~0 0)) (.cse3 (= ~a28~0 9)) (.cse9 (= ~a25~0 ~a11~0)) (.cse10 (= 7 ~a28~0)) (.cse15 (not .cse4)) (.cse1 (= 7 ~a17~0)) (.cse13 (= ~a25~0 0)) (.cse11 (= ~a25~0 ~a19~0)) (.cse14 (= ~a17~0 8)) (.cse2 (= ~a25~0 1)) (.cse16 (= ~a28~0 10)) (.cse5 (<= 8 ~a17~0)) (.cse6 (<= ~a19~0 1)) (.cse7 (<= ~a17~0 8)) (.cse8 (<= 1 ~a19~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~a19~0)| 1)) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) (<= 10 ~a28~0) .cse5 .cse6 .cse7 .cse8 (<= ~a28~0 10)) (not (= 8 |old(~a17~0)|)) (and .cse9 .cse10 .cse2 .cse11 (= ~a28~0 ~a17~0)) (and .cse12 .cse13 .cse14 .cse3) (and .cse0 .cse5 .cse2 .cse15 .cse7 .cse16) (and .cse13 .cse14 .cse17 .cse15 (= ~a28~0 8)) (and .cse13 .cse14 .cse17 .cse10 .cse4) (and .cse0 .cse14 .cse10 .cse15 (not .cse2)) (and .cse14 .cse3 .cse15 (= ~a19~0 |old(~a19~0)|)) (and .cse9 .cse12 (= ~a25~0 |old(~a25~0)|) .cse14 .cse10) (and .cse5 .cse2 .cse6 .cse15 .cse7 .cse8) (and .cse1 .cse13 .cse4 .cse11 .cse16) (not (= 0 |old(~a11~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (and .cse12 .cse14 .cse2 .cse16) (and (<= 9 ~a28~0) (<= 1 ~a25~0) .cse5 .cse6 (<= ~a28~0 9) .cse7 (<= ~a25~0 1) .cse8) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:12:17,355 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:12:17,355 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:12:17,356 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (= ~a11~0 1)) (.cse16 (= ~a19~0 1))) (let ((.cse13 (= ~a25~0 ~a11~0)) (.cse9 (not .cse16)) (.cse2 (= ~a28~0 9)) (.cse5 (= 7 ~a17~0)) (.cse8 (= ~a25~0 0)) (.cse15 (= ~a25~0 ~a19~0)) (.cse0 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse4 (= ~a19~0 0)) (.cse14 (= 7 ~a28~0)) (.cse3 (not .cse7)) (.cse1 (= ~a17~0 8)) (.cse6 (= ~a25~0 1)) (.cse12 (= ~a28~0 10)) (.cse10 (<= 8 ~a17~0)) (.cse17 (<= ~a19~0 1)) (.cse11 (<= ~a17~0 8)) (.cse18 (<= 1 ~a19~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~a19~0 |old(~a19~0)|)) (and .cse4 .cse5 .cse6 .cse2 .cse7) (not (= |old(~a19~0)| 1)) (and .cse0 .cse8 .cse1 .cse9 .cse3 (= ~a28~0 8)) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse4 .cse10 .cse6 .cse3 .cse11 .cse12) (and .cse13 .cse14 .cse6 .cse15 (= ~a28~0 ~a17~0)) (and .cse0 .cse13 .cse16 (= ~a25~0 |old(~a25~0)|) .cse1 .cse14) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) (<= 10 ~a28~0) .cse10 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (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))) .cse17 .cse11 .cse18 (<= ~a28~0 10)) (and .cse8 .cse1 .cse9 .cse14 .cse7) (and .cse16 .cse8 .cse1 .cse2 .cse7) (and .cse10 .cse6 .cse17 .cse3 .cse11 .cse18) (and .cse5 .cse8 .cse7 .cse15 .cse12) (not (= 0 |old(~a11~0)|)) (not (= ~a21~0 1)) (and .cse0 .cse4 .cse1 .cse14 .cse3 (not .cse6)) (not (= 7 |old(~a28~0)|)) (and .cse16 .cse1 .cse6 .cse12) (and (<= 9 ~a28~0) (<= 1 ~a25~0) .cse10 .cse17 (<= ~a28~0 9) .cse11 (<= ~a25~0 1) .cse18) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:12:17,356 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:12:17,356 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:12:17,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:12:17 BoogieIcfgContainer [2020-10-13 06:12:17,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:12:17,393 INFO L168 Benchmark]: Toolchain (without parser) took 87844.23 ms. Allocated memory was 140.0 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 101.6 MB in the beginning and 955.5 MB in the end (delta: -853.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-10-13 06:12:17,394 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:12:17,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.24 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 170.2 MB in the end (delta: -68.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:17,395 INFO L168 Benchmark]: Boogie Preprocessor took 105.90 ms. Allocated memory is still 204.5 MB. Free memory was 169.5 MB in the beginning and 165.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:17,396 INFO L168 Benchmark]: RCFGBuilder took 1438.85 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 164.5 MB in the beginning and 180.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:17,397 INFO L168 Benchmark]: TraceAbstraction took 85510.87 ms. Allocated memory was 238.0 MB in the beginning and 1.2 GB in the end (delta: 943.7 MB). Free memory was 179.2 MB in the beginning and 955.5 MB in the end (delta: -776.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2020-10-13 06:12:17,400 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 779.24 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 170.2 MB in the end (delta: -68.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.90 ms. Allocated memory is still 204.5 MB. Free memory was 169.5 MB in the beginning and 165.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1438.85 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 164.5 MB in the beginning and 180.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 85510.87 ms. Allocated memory was 238.0 MB in the beginning and 1.2 GB in the end (delta: 943.7 MB). Free memory was 179.2 MB in the beginning and 955.5 MB in the end (delta: -776.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 544]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a19 == 0 && 7 == a17) && a25 == 1) && a28 == 9) && a11 == 1) || !(\old(a19) == 1)) || (((((((a11 <= 0 || 1 < a11) && 10 <= a28) && 8 <= a17) && a19 <= 1) && a17 <= 8) && 1 <= a19) && a28 <= 10)) || !(8 == \old(a17))) || ((((a25 == a11 && 7 == a28) && a25 == 1) && a25 == a19) && a28 == a17)) || (((a19 == 1 && a25 == 0) && a17 == 8) && a28 == 9)) || (((((a19 == 0 && 8 <= a17) && a25 == 1) && !(a11 == 1)) && a17 <= 8) && a28 == 10)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && 7 == a28) && a11 == 1)) || ((((a19 == 0 && a17 == 8) && 7 == a28) && !(a11 == 1)) && !(a25 == 1))) || (((a17 == 8 && a28 == 9) && !(a11 == 1)) && a19 == \old(a19))) || ((((a25 == a11 && a19 == 1) && a25 == \old(a25)) && a17 == 8) && 7 == a28)) || (((((8 <= a17 && a25 == 1) && a19 <= 1) && !(a11 == 1)) && a17 <= 8) && 1 <= a19)) || ((((7 == a17 && a25 == 0) && a11 == 1) && a25 == a19) && a28 == 10)) || !(0 == \old(a11))) || !(a21 == 1)) || !(7 == \old(a28))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 10)) || (((((((9 <= a28 && 1 <= a25) && 8 <= a17) && a19 <= 1) && a28 <= 9) && a17 <= 8) && a25 <= 1) && 1 <= a19)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 79.9s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 30.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 675 SDtfs, 7124 SDslu, 958 SDs, 0 SdLazy, 14644 SolverSat, 1221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 389 GetRequests, 158 SyntacticMatches, 9 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 124 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 146 NumberOfFragments, 1546 HoareAnnotationTreeSize, 108 FomulaSimplifications, 20709719 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2102 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 44.7s InterpolantComputationTime, 3921 NumberOfCodeBlocks, 3921 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3903 ConstructedInterpolants, 0 QuantifiedInterpolants, 8356040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 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...